Canadian Brewer Spectrometer Network

ab_sk

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T12:08:21+00:00

AB_SK Abort Schedule THIS IS NOT A COMMAND This is the routine that contains the code to “HOME” out the brewer from any command back to the command prompt.

aerosol_optical_depth

Anonymous (anonymous@undisclosed.example.com) — 2026-04-30T12:36:07+00:00

Aerosol Optical Depth WIP File Creation

af

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T17:39:30+00:00

AF Auto HG off If auto HG is set (AN), HG measurements automatically are inserted after FR measurements as part of an automatic instrument recovery strategy. This configuration must be shut off during the ED (End of Day) or it could adversely affect the closing of the current day and creation of the new day data files.

alert

Anonymous (anonymous@undisclosed.example.com) — 2026-03-10T17:18:07+00:00

Alert “Alert, in the Qikiqtaaluk Region, Nunavut, Canada, is the northernmost permanently inhabited place in the world,[4] located on Ellesmere Island at latitude 82°30'05” north, 817 kilometres (508 mi) from the North Pole.[5] The entire population of the census subdivision Baffin, Unorganized, is located here. (Baffin Region is the Statistics Canada name for Qikiqtaaluk.) As of the 2016 census, the population was reported as 62, an increase of 57 over the 2011 census.[2] It takes its name f…

an

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T17:35:50+00:00

AN Auto HG on If auto HG is set, HG measurements automatically are inserted after FR measurements as part of an automatic instrument recovery strategy. This configuration must be shut off during the ED (End of Day) or it could adversely affect the closing of the current day and creation of the new day data files.

aodsum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-30T18:26:21+00:00

AODSUM Aerosol Optical Depth Daily Summary AOD Summary for the Day - This routine outputs a summary list of direct sun aerosol optical depth observations for the current day.

ap

Anonymous (anonymous@undisclosed.example.com) — 2025-04-15T15:17:20+00:00

AP Monitor Voltages Printout This command prints to the monitor screen, or to disc, a number of diagnostics that are continuously available in the Brewer. The diagnostics include power supply voltages, test lamp voltages and currents, temperatures, and Brewer moisture content.

apsum

Anonymous (anonymous@undisclosed.example.com) — 2026-04-16T14:38:40+00:00

APSUM MKII/MKIII/MKIV AP Calibration Summary This routine outputs a summary list of all the A/D channels for the current day for both the lamps on and lamps off state. The information is written to the APOAVG file

ar

Anonymous (anonymous@undisclosed.example.com) — 2021-11-24T21:56:50+00:00

AR Azimuth Rotation This test checks that the azimuth tracker does not slip dramatically with a series of short counter clockwise (ccw) motions

artemis

Anonymous (anonymous@undisclosed.example.com) — 2021-12-20T19:18:14+00:00

Artemis Artemis is the Remote Sensing 3d printer. The printer can be accessed here Settings All settings are assuming the WHAM BAM flex plate build plate is used. BrandLineTypeHotend TempBed TempProbe offsetFilament.caEcoToughPLA200c-210c600Filament.ca

as

Anonymous (anonymous@undisclosed.example.com) — 2026-05-27T15:17:00+00:00

AS Azimuth Tracker to the Sun The AS command moves the Azimuth Tracker to the azimuth angle where the Ephemeris has calculated the sun to be for the current location and time. The North Correction from the most recent Siting (see SI command) is applied.

au

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T02:17:39+00:00

AU Automatic Operation The AU command results in the Brewer executing a series of commands which are imbedded the AU routine (HP HG DS ZS DS ZS DS ZS B1 UV (or UX)). The sequence continues until interrupted by an operator, or until the sun reaches ZA = 85. At ZA = 85, the system executes the ED command.

auto-off

Anonymous (anonymous@undisclosed.example.com) — 2026-04-15T16:44:39+00:00

AUTO-OFF Auto HG off If auto HG is set (AUTO-ON), HG measurements automatically are inserted after FR measurements as part of an automatic instrument recovery strategy. This configuration must be shut off during the ED (End of Day) or it could adversely affect the closing of the current day and creation of the new day data files.

auto-on

Anonymous (anonymous@undisclosed.example.com) — 2026-04-15T16:46:18+00:00

AUTO-ON Auto HG on If auto HG is set, HG measurements automatically are inserted after FR measurements as part of an automatic instrument recovery strategy. This configuration must be shut off during the ED (End of Day) or it could adversely affect the closing of the current day and creation of the new day data files.

auto

Anonymous (anonymous@undisclosed.example.com) — 2026-04-15T16:23:32+00:00

AUTO MKII/MKIII/MKIV Set Up and Repeat Auto Sequence mostly for DS calibrations NOTE: this routine will do (hp)hg only if the temperature changes between attempts or if it has been more than 2 hrs since last HG. Code near the top of the routine can be altered to force specified MKIII instruments to do UV measurements instead of the UX normally done.

az

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T11:38:53+00:00

AZ Azimuth Tracker Zeroing The AZ command causes the Azimuth Tracker to return to its zero reference (North) position, and then move the Brewer to the solar azimuth as calculated by the Ephemeris according to the Location, the Time, and the current North Correction, as determined by the most recent Sighting (see SI command).

b0

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T23:42:57+00:00

B0 Turn off Lamps B0 ensures that the Standard Lamp and Mercury Lamps are both off. See Lamps

b1

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T23:45:56+00:00

B1 Mercury Lamp ON B1 turns on the internal Mercury Calibration Lamp, and is useful in a command sequence (i.e. B1DSHG) where a DS measurement is taken while the Mercury lamp is warming up B1. Note that if the HG does not execute for some reason, the lamp may be left on and must be turned off with the B0 command.

b2

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T23:48:22+00:00

B2 Standard Lamp ON B2 turns on the internal Standard test Lamp and is useful in a command sequence (i.e. B2ZSSL) where the ZS measurement is taken while the Standard Lamp is warming up. Note that if the SL does not execute for some reason, the Lamp may be left on and should be turned off with the B0 command.

bcopy

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T17:31:22+00:00

BCOPY.exe File Appending Program BCOPY is a program written for the purpose and use of the Brewer collection software to append Brewer data to the various data files produced by the instrument.

bp

Anonymous (anonymous@undisclosed.example.com) — 2021-11-24T23:12:47+00:00

BP Beep This routine produces an audible alert to the operator from the collection software.

brewcaldb

Anonymous (anonymous@undisclosed.example.com) — 2026-07-03T15:12:10+00:00

Tips/Tricks/Things you don't know! Spreadsheet Entries There are two types of entries that can be entered into the initial or final section. * When a box is green, you can enter in the Yes, No or N/A * Yes - can be entered by pressing , ¹ *

brewers

Anonymous (anonymous@undisclosed.example.com) — 2024-08-29T10:46:20+00:00

Brewers

brewer_application

Anonymous (anonymous@undisclosed.example.com) — 2021-10-14T15:04:12+00:00

Brewer Application The Brewer Application php was built to maintain the brewer database including travel history form, and other information about brewers. The Brewer application is still a work in progress. Improvements * Incorporate the wiki *

brewer_log_summary

Anonymous (anonymous@undisclosed.example.com) — 2025-10-24T12:15:08+00:00

Brewer Log Summary See Metabase for more filters and options. Brewer Log Form Log Form

brewer_scripts

Anonymous (anonymous@undisclosed.example.com) — 2021-11-22T18:51:16+00:00

Brewer Scripts A description of the scripts that are being used for the Canadian Brewer Spectrometer network. The latest codes can be found on github. Contact Reno.sit@ec.gc.ca for access. All script has been tested on Linux Mint 19.x and Linux Ubuntu 20.04 LTS. Requirement:

brewer_shipping

Anonymous (anonymous@undisclosed.example.com) — 2026-05-15T13:34:56+00:00

Introduction Brewer spectrophotometers track the Sun or Moon, and use a spectrometer combined with a photo-multiplier tube to take high-precision measurements of the intensity of ultraviolet light reaching the Earth’s surface. These measurements are taken at the absorption wavelengths of ozone, which allows the total amount of stratospheric ozone in a column between the instrument and the Sun to be calculated. Measurements made at this station are part of a worldwide network of 200+ currently …

brewnet

Anonymous (anonymous@undisclosed.example.com) — 2022-03-10T16:06:28+00:00

Brewnet Info Crontab 0 16 * * * /usr/bin/python3 /home/brewer/schedule_task/year_mover.py 0,30 0-3,5-23 * * * rsync -vhrlt --exclude-from /home/brewer/schedule_task/exclude-list.txt -e "ssh -i "/home/brewer/schedule_task/id_rsak"" arqxozone@exp-studies.tor.ec.gc.ca:/home/arqxozone/brewnet/ /home/brewer/brews/brewnet/Brewers/ 0 4 * * * /home/brewer/schedule_task/rsync-all.sh 10,40 0-3,5-23 * * * ~/www/dokuwiki/ideas/loadbfiles.sh 15 4 * * * ~/www/dokuwiki/ideas/loadb…

ca

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T17:43:42+00:00

CA Custom Scan This routine was originally developed from the CZ routine that configured the instrument to scan various sources, either by reading a configuration file (CZ.CFG within the data directory) or by entering in the configuration parameters as prompted.

cal

Anonymous (anonymous@undisclosed.example.com) — 2026-05-29T14:36:48+00:00

CAL Ozone Calibration Schedule This is a mixed manual and automated schedule. Starting after GMT midnight a diagnostic string to monitor a compliment of instrument functions are collected for assessment. The C7 routine is then called to automatically insert SL and HG measurements as needed, then focuses purely on DS measurements for comparison and calibration purposes.

calo3

Anonymous (anonymous@undisclosed.example.com) — 2026-05-29T14:08:32+00:00

CALO3 Ozone Calibration Schedule This is a mixed manual and automated schedule. Starting after GMT midnight a diagnostic string to monitor a compliment of instrument functions are collected for assessment. The EO routine is then called to automatically insert SL and HG measurements as needed, takes one UV measurement per hour; prioritize DS during the remaining time available within the hour and also takes ZS measurements periodically and when the DS measurements are too dim.

calsc

Anonymous (anonymous@undisclosed.example.com) — 2026-05-29T14:01:01+00:00

CALSC Calibration Sun Scan Schedule This is a mixed manual and automated schedule. Starting after GMT midnight a diagnostic string to monitor a compliment of instrument functions are collected for assessment. Then the automated routine, EC is started. Discreate sun angles interrupt the automated schedule to manually insert sun scans (SC) for Cal Step determination. After a following HG, the schedule then recalls the EC routine to automatically insert SL and HG measurements as needed, takes…

calscnuv

Anonymous (anonymous@undisclosed.example.com) — 2026-05-29T14:01:26+00:00

CALSCNUV Calibration Sun Scan No UV Schedule This is a mixed manual and automated schedule. Starting after GMT midnight a diagnostic string to monitor a compliment of instrument functions are collected for assessment. Then the automated routine, EN is started. Discreate sun angles interrupt the automated schedule to manually insert sun scans (SC) for Cal Step determination. After a following HG, the schedule then recalls the EN routine to automatically insert SL and HG measurements as need…

calzs

Anonymous (anonymous@undisclosed.example.com) — 2026-05-29T14:29:08+00:00

CALZS Zenith Sky Focused Calibration Schedule This is a mixed manual and automated schedule. Starting after GMT midnight a diagnostic string to monitor a compliment of instrument functions are collected for assessment. Then the automated routine, EP is started. Discreate sun angles interrupt the automated schedule to manually insert Zenith Sky (ZS) measurements. The schedule then recalls the EP routine to automatically insert SL and HG measurements as needed, omits all UV measurements and p…

canadian_dobson

Anonymous (anonymous@undisclosed.example.com) — 2025-05-15T17:43:48+00:00

History of the Dobsons Spectrophotometer in Canada This Dobson moved from the Edmonton Industrial Airport to Stony Plain sometime between 1966 and 1968. This is a preWWII photoelectric Dobson which was upgraded after the war. about March 1969

care

Anonymous (anonymous@undisclosed.example.com) — 2020-12-01T16:33:35+00:00

CARE The Center for Atmospheric Research Experiments (CARE) at Egbert is designed to monitor our changing atmosphere and serve as a testing site for new methods to measure air pollution, climate, and weather conditions. Egbert and CARE are located approximately 70 km north of Toronto.

cb

Anonymous (anonymous@undisclosed.example.com) — 2026-04-09T15:36:26+00:00

CB Extended CZ Scan This routine performs a complete, customizable scan of a selected port.

cbsn

Anonymous (anonymous@undisclosed.example.com) — 2025-05-09T11:32:53+00:00

Canadian Brewer Spectrometer Network The Canadian Brewer Spectrometer Network is the operated by Environment and Climate Change Canada. They operate 8 sites across Canada (Alert - Nunavut, Churchill - Manitoba, Euerka - Nunavut, Goosebay - Newfoundland Labrador, Resolute Bay - Nunavut, Saturna - British Columbia, Stony Plain - Alberta, and Toronto - Ontario) and 2 international site in collaboration with NOAA (Mauna Loa - Hawaii and South Pole)

cbsnet

Anonymous (anonymous@undisclosed.example.com) — 2025-12-17T14:13:36+00:00

Everything to know about CBSNet CBSNet is the database computer for the Brewer log form, Brewer Data, Straylight processing and etc. crontab The list below shows the different sections used in the crontab a crontab jobs are setup so that they runs a command at is specific time. The format for the crontab job are as follows.

cbsn_shipping

Anonymous (anonymous@undisclosed.example.com) — 2026-04-29T19:02:41+00:00

Shipping @ CBSN For shipping and receiving for the Canadian Brewer Spectrophotometer Network, we utilize the help of the shipping department at Downview. Shipping Most if not all shipping can be handle by the shipping department at downview. They can be contacted via Warehouse.Services@ec.gc.ca for any questions. To ship something, they will require a shipping memo that can be created with the Brewer Parts software. To create a shipping memo head into the shipment tab of the software.

cc

Anonymous (anonymous@undisclosed.example.com) — 2026-04-09T15:40:58+00:00

CC MKII/MKIII/MKIV Lamp Scanning Routine This routine is the same as CJ but disables the micrometers to test the counting circuit

cf

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T22:12:34+00:00

CF Instrument Constants File Update CF accesses the Brewer’s Instrument Constants File and allows the operator to make changes. Note: The constants in this file affect the operation and calibration of the instrument, and normally are not changed unless the instrument is undergoing recalibration or has undergone repairs. This command requires operator input, and changes should be made or approved only by qualified personnel.

cfg_out

Anonymous (anonymous@undisclosed.example.com) — 2026-04-15T16:56:49+00:00

CFG_OUT MKII/MKIII/MKIV Single board CFG file constants printout This routine reads some constants from a Brewer CFG (new electronics only) and displays them onscreen and on the printer.

checkaz

Anonymous (anonymous@undisclosed.example.com) — 2026-04-15T18:11:48+00:00

CHECKAZ MKII/MKIII/MKIV Azimuth Check Routine This routine checks the azimuth to see if it is positioned within the reference sensor, and moves it out if it is. This is done to work around a limitation of the December 10 1999 firmware, which does not reset the azimuth correctly in this situation.

checkfw

Anonymous (anonymous@undisclosed.example.com) — 2026-04-15T18:20:44+00:00

CHECKFW MKII/MKIII/MKIV Check Options Routine This routine checks all motors controlled by I/O Board “B”. The routine moves Filter wheel #1, Filter wheel #2 and the Iris through the extent of their travel from minimum to maximum and back to minimum continually. This allows for inspection of the movement until the HOME key is pressed.

checkhg

Anonymous (anonymous@undisclosed.example.com) — 2026-04-15T20:02:31+00:00

CHECKHG MKII/MKIII/MKIV Mercury Bulb test result message This routine reads the HG.ADJ variable and if it is a non-zero value displays to the user how far the test was off optimal, in number of steps. If HG.ADJ = 0, then the message “Last HG was OK

chk_cod

Anonymous (anonymous@undisclosed.example.com) — 2026-04-15T19:55:09+00:00

CHK_COD MKII/MKIII/MKIV Multiple board CFG file constants printout CHK_COD is a multiple board Brewers' routine only. This routine reads out values stored in some COSMAC memory locations to see if the COD files have been loaded during RE.

churchill

Anonymous (anonymous@undisclosed.example.com) — 2025-08-05T12:10:43+00:00

Churchill Churchill is a town in northern Manitoba, Canada, on the west shore of Hudson Bay, roughly 110 km (68 mi) from the Manitoba–Nunavut border. It is most famous for the many polar bears that move toward the shore from inland in the autumn, leading to the nickname

ci

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T23:54:09+00:00

CI Lamp Scan CI is used to perform a wavelength scan from 286.5 nm to 366 nm on one of the two internal test lamps. Filter Wheels are set to positions 1 and 0, and the Iris is open. The increment of the scan is user selectable with choices of 1, 2, or 5 Angstrom. Data can be compared with the data contained in the Final Test Record, and is stored in the file CIJJJYY.NNN in the instrument \DATA directory.

cj

Anonymous (anonymous@undisclosed.example.com) — 2025-01-15T13:59:01+00:00

CJ This routine is similar to the CI except CJ will scan the wavelengths both up and back down. CJ is used to perform a wavelength scan from 286.5 nm to 366 nm on one of the two internal test lamps. Filter Wheels are set to positions 1 and 0, and the Iris is open. The increment of the scan is user selectable with choices of 1, 2, or 5 Angstrom. Note that you must turn on the desired lamp first with a To run this, you must turn on the bulb either the

cl

Anonymous (anonymous@undisclosed.example.com) — 2026-04-16T14:49:59+00:00

CL MKII/MKIII/MKIV Set Up and Repeat Auto Sequence mostly for DS calibrations NOTE: this routine will do (hp)hg only if the temperature changes between attempts This is a routine utilized mainly during calibrations

cn

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T02:21:18+00:00

CN Continue This routine continues the schedule that was in use when the data collection was interrupted. Please note that if the instrument was not in scheduled operation previously (in MENU) than the CN command will not return the instrument into a scheduled data collection operation. The SK or SKC command will need to be input to prompt the operator to select a schedule to be run by the instrument.

co

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T00:07:18+00:00

CO Comments CO allows the operator to enter a comment (up to 75 characters) into the Brewer data file. This command is useful to record information about a measurement, current weather, sky conditions, and so on. This command requires operator input.

collection_software

Anonymous (anonymous@undisclosed.example.com) — 2025-06-18T18:22:30+00:00

Collection Software and Changes 7.626 March 26, 2025 - Pushed out new version of main along with fr, hg and di. New commands FT and FB information can be found here. The FR shows less information during the scan, but finishes much quicker. DI has been fixed to rectify the issue where it doesn't always post updates in the bfile during its scan.

commands

Anonymous (anonymous@undisclosed.example.com) — 2026-05-29T14:43:18+00:00

Brewer Commands The Brewer Spectrometer is ran by a series of two (2) letter and three (3) letter commands. *Note*: All three letter command must entered individually, two letter commands can be used as a string of command. Typically used commands

configuration_parameter

Anonymous (anonymous@undisclosed.example.com) — 2020-12-30T14:30:26+00:00

Configuration Parameter Parameter/responseFormatmeaningIdentifierstarting address within the spaceIdentifier or numberwhich element of a vector of such valuesDepends on depends on format of Effectivemeaning of

connectors

Anonymous (anonymous@undisclosed.example.com) — 2025-07-04T19:33:17+00:00

Connectors The brewer uses 3 types of external connectors for Power, communications and tracker cable. Communication Cable The communication cable can be used to connect to the tracker or directly to the brewer Cable Pinouts RS422 Pin Serial Gear

cr

Anonymous (anonymous@undisclosed.example.com) — 2026-04-09T16:01:42+00:00

CR MKIV Cosine Response Lamp Scanning Routine This routine is a TEST ROUTINE - NOT FOR RELEASE

creator.py

Anonymous (anonymous@undisclosed.example.com) — 2021-01-04T14:02:30+00:00

Creator Script The creator script must be launch via python3 python3 creator.py Requirement * Complete option 1 rsync.shrsync-all.sh Requirement * Run the python script with sudo ... Note * Ensure no device is connected.

cs

Anonymous (anonymous@undisclosed.example.com) — 2024-01-22T16:21:13+00:00

CS Command Sequence CS is similar to a command line entry at the cm->__ prompt. The operator may enter a sequence of commands to be executed, followed by an integer which indicates the number of times the sequence is to be repeated. This command requires operator input.

cx

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T12:20:46+00:00

CX MKII/MKIII/MKIV DS,ZS,FM and FZ Ozone CREX encoder routine This routine was written by Martin Stanek, Czech Republic, June 1998. CREX encoder routine for real-time exchange of Brewer ozone measurements.

cy

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T15:55:46+00:00

CY Slitmask Cycles The default value for slitmask cycling for most observations is 20. The CY command may be used to increase or decrease this number if better statistics, or a faster measurement (with degraded statistics) is desired. This command requires operator input.

cz

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T00:14:31+00:00

CZ Custom Scan CZ allows the operator to define a custom scan. Sources may be one of the internal lamps, the UV port, or the quartz window. The scan may be over any wavelength range within the Brewer’s UV scan limits, have any wavelength increment, and use any filterwheel combination.

d1

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T17:36:19+00:00

D1 MKII/MKIII/MKIV Motor Test Set Up The routine can control, with user input, a subset of the motor tests preformed by the DI command. This routine is used within the DI command

da

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T16:15:35+00:00

DA Date Set The Brewer ephemeris requires GMT (both date and time) for proper operation. Under normal, uninterrupted operation, the computer, and Brewer, dates will change at 00:00:00 UT, and are displayed on the monitor screen. Under some conditions (power failure at 00:00:00 UT), the date may not update, and may have to be corrected manually. The pointing system updates automatically when a new date is entered.

da_lo

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T02:30:41+00:00

DA_LO Date / Location This routine is the code to get the date and location information. If the AVG directory for the instrument does not exist, this code will create it.

desiccant_can

Anonymous (anonymous@undisclosed.example.com) — 2022-06-08T13:42:27+00:00

Installation for New Style Desiccant Holder Old electronics (Multi-board) * Take the lid off the brewer * Turn off the brewer * Remove the tub of desiccant * Remove the 3 holding down the case on the secondary power supply as shown below

di

Anonymous (anonymous@undisclosed.example.com) — 2021-11-24T23:27:51+00:00

DI The DI routine completes several checks. These checks include standard lamp (SL) and Mercury bulb (Hg) warmup characteristics, while the others test and indicate the performance of various motors within the instrument. As shown in the image above, the plot shows the intensity of the bulb in relationship with time.

dimds-off

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T17:42:56+00:00

DIMDS-OFF Dim DS Skip If DIMDS-OFF is set, DS measurements are automatically taken and the incoming light is not reviewed to see if an acceptable measurement is possible.

dimds-on

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T17:40:59+00:00

DIMDS-ON Dim DS Skip If DIMDS-ON is set, DS measurements are automatically skipped if the detected light is too dim for an acceptable measurement.

disassembly

Anonymous (anonymous@undisclosed.example.com) — 2025-12-18T12:21:22+00:00

Disassembly Removing The PMT Core * Remove the foreoptics (Instructions here) * Remove remove the PMT and the PMT core (Instructions here) Removing the Spectrometer Removing the Spectrometer

dispersion_kit

Anonymous (anonymous@undisclosed.example.com) — 2024-02-13T12:01:23+00:00

Dispersion Kit DSP KitLocationType of CaseLamp Holder style1TorontoRed Metal Box1 Each2SaturnaPelican Case1 Each3ResolutePelican Case1 Each4AlertPelican Case2 Metal5Stony PlainPelican Case2 Metal6ChurchillPelican Case1 Each7GoosebayPelican Case1 Each

dk

Anonymous (anonymous@undisclosed.example.com) — 2025-01-15T13:53:33+00:00

DK Uses CJ.rtn, but does a dark count leakage test.

dm

Anonymous (anonymous@undisclosed.example.com) — 2023-10-30T18:52:21+00:00

DM Data Management Menu Displays the data management menu. This menu provides commands which control disk operations, data-output formatting, and production of daily data summary printouts.

documents

Anonymous (anonymous@undisclosed.example.com) — 2026-03-09T17:52:06+00:00

Documents SOP [Brewer Site Operators SOP] [Aerosol Optical Depth] [Sun Scan] [Dispersion Calibration] [UV] [ZS Coeff Generation] [Ozone Cal] [Temp Cal] [Brewer Levelling] Zenith Sky Chart Coefficient Generation SOP [UV Secondary Lamp Calibration SOP] Manuals [Brewer MKII Operators Manual] [Brewer MKIII Operators Manual] [Brewer MKIII Service Manual] [Brewer MKIII service manual drawing Rev D] [Brewer MKII & MKIV Multi-board Service Manual] [ Brewer Shipping instructions V2] […

dp

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T12:05:42+00:00

DP MKII/MKIII/MKIV Dispersion Test Routine This routine sets up a default DSP scan. The DP data, with internal HG scans only, will reside in the DP-### directory.

ds

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T19:06:08+00:00

DS Direct Sun Ozone Observation DS results in an O3 observation being taken using the direct sun as a radiation source. The Brewer Zenith Prism and Azimuth Tracker are oriented toward the sun, the Iris is closed, FW#1 is rotated to the Ground Quartz Disk (position 1), and FW#2 is adjusted for maximum intensity (starting from position 2) without overdriving the PMT detector. Data is recorded on disk and is printed as previously determined by PN, PD, and PF commands.

dsp

Anonymous (anonymous@undisclosed.example.com) — 2026-04-29T17:31:10+00:00

DSP DSP is a command to perform a dispersion on the Brewer Spectrometer. This command cannot be ran together with other commands as one command string, and must be ran by itself. Dispersion Calibration - Brewer Spectrometer A dispersion calibration is performed to determine the relationship between the micrometer movement (steps) and the UV wavelengths passing through the exit slits of the slit mask. The UV spectrum of three different lamp sources, mercury, zinc and cadmium are scanned (PMT c…

dsp1

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T17:57:06+00:00

DSP1 MKII/MKIII/MKIV Dispersion Test Routine This routine scans the actual reference lamp lines specified by DSP. The scan results are written to files that LINEFIT.EXE can use. The DSP data, will reside in the DSP-### directory. See Also: dsp.rtn

dsp2

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T17:54:30+00:00

DSP# MKII/MKIII/MKIV Dispersion Test Routine This routine sets up a default DSP or custom DSP scan. A custom scan can specify what range of slits to use, the set of frequencies (3 to 9) and associated neutral density and lamp source. This copy of DSP will do the chosen lamp and then will do the internal HG and then will continue schedule. The DSP data, will reside in the DSP-### directory.

dspn2

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T17:59:39+00:00

DSPN2 MKII/MKIII/MKIV Dispersion Test Routine This routine scans the NO2 lines. The scan results are written to files that LINEFIT.EXE can use. The DSP data, will reside in the DSP-### directory. See Also: dsp1.rtn

dssum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:37:21+00:00

DSSUM Direct Sun Data Summary DSSUM reads the daily Data (B) file and printouts out the summary of the day’s DS measurements. An entry is also made to the OZOAVGYY.nnn file. The DSSUM command is usually used as part of the ED command. See Appendix A for an example of the Ozone average files.

dt

Anonymous (anonymous@undisclosed.example.com) — 2021-11-24T23:44:11+00:00

DT Dead Time Measurement Dead Time is a measure of how long a photon counting circuit is “dead” (or cannot count a second photon) after a first photon has been detected. This characteristic of counting circuits can lead to counting errors especially at high photon rates if not compensated for. The DT command initiates a test for the measurement of the dead time of the Photon counting circuits of the Brewer. The DT command is normally executed as part of the ED routine and the test results are …

dusum

Anonymous (anonymous@undisclosed.example.com) — 2026-05-27T17:22:42+00:00

DUSUM MKII/MKIII/MKIV DUV Summary for the Day This routine takes the UVDDDYY.### file created for the day and re-calculates the DUV values for each scan in the file. The individual DUV results are printed to printer and DU_ file and the daily intergal value is appended to the UVOAVG.### file.

dvm

Anonymous (anonymous@undisclosed.example.com) — 2023-06-19T17:31:16+00:00

Digital Voltage Meter These Digital voltage meters (DVM) are used for the UV lamp calibration system to control and insure the current stays at 8A by changing the voltage. Calibration and location Record Serial NumberAsset TagCalibration Due DateLocation

ec

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T20:38:39+00:00

EC Calibration focused configuration Used to alter the configuration line in an automated schedule Configuration set to measure 1 UV per hour, with the focus on Direct Sun measurements, No Zenith Sky, and 1 Timed UV with Fast scan for singles (Compare UV's)

ecdiag

Anonymous (anonymous@undisclosed.example.com) — 2026-05-29T12:59:16+00:00

ECDIAG CAL and UV Diagnostic Schedule This is an automated schedule that manually schedules daily diagnostics routines then calls the EC routine to automatically insert SL and HG measurements as needed, takes one TIMED UV measurement per hour; prioritize DS during the remaining time available within the hour and also takes ZS measurements periodically and when the DS measurements are too dim.

eceo

Anonymous (anonymous@undisclosed.example.com) — 2026-05-29T14:09:07+00:00

ECEO Ozone Focused Measurement Schedule This is an automated schedule that manually schedules daily diagnostics routines then calls the EO routine to automatically insert SL and HG measurements as needed, takes one UV measurement per hour; prioritize DS during the remaining time available within the hour and also takes ZS measurements periodically and when the DS measurements are too dim.

ecnouv

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T21:27:41+00:00

ECNOUV No UV Measurement Schedule This is an automated schedule that manually schedules daily diagnostics routines then calls the EN routine to automatically insert SL and HG measurements as needed, omits UV measurements; prioritize DS during the remaining time available within the hour and also takes ZS measurements periodically and when the DS measurements are too dim.

ecsc

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T21:22:09+00:00

ECSC Balanced Measurement Schedule This is an automated schedule that manually schedules daily diagnostics routines then calls the EU routine to automatically insert SL and HG measurements as needed, four UV measurements; prioritize DS during the remaining time available within the hour and also takes ZS measurements periodically and when the DS measurements are too dim.

ed

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:34:55+00:00

ED End of Day At the end of each solar day (solar midnight) it is desirable to summarise, sort, and print out the results of the tests and observations taken the previous day. This may be achieved by using the ED command. The ED routine: • Sorts and prints data from observations and tests (see

em

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T20:25:03+00:00

EM Custom configuration Used to alter the configuration line in an automated schedule Configuration set with Custom flags - modified setup (review before using) Line 11220. The following flags are not a consistent setting: NofUV%=1:DSONLY%=0:GI%=-1:UA%=1:ZP%=0:ZS%=0:ZUM%=0:IF TYP$<>

en

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T20:32:20+00:00

EN UV Omitted (No UV) configuration Used to alter the configuration line in an automated schedule Usually used when micrometer problems occur when doing UV. Line 11220 in the routine altered to: NofUV%=0:DSONLY%=0:GI%=-1:UA%=0:ZP%=0:ZS%=1:ZUM%=0:IF TYP$<>

end_day

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T02:56:42+00:00

END_DAY End of Day (past day) Command Syntax: END_DAY Feb29/21 or END_DAY 06021 END_Day performs an End of Day on a previous day’s data. For the command syntax example: if the raw data file B06021.nnn exists, a Summary file (S06098.nnn) will be created and summary files printed.

eo

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T20:43:54+00:00

EO Ozone Focused configuration Used to alter the configuration line in an automated schedule Configuration set to measure 1 UV per hour, with the focus on Direct Sun and Zenith Sky measurements, No Timed UV Line 11220 in the routine altered to: NofUV%=1:DSONLY%=0:UA%=0:ZP%=0:ZS%=1:ZUM%=0:IF TYP$<>

ep

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T20:48:33+00:00

EP Zenith Sky focus configuration Used to alter the configuration line in an automated schedule Configuration set to measure No UV measurements, Direct Sun and 3 forms of the Zenith Sky measurements, No Timed UV Line 11220 in the routine altered to: NofUV%=0:DSONLY%=0:UA%=0:ZP%=1:ZS%=1:ZUM%=1:IF TYP$<>

eu

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T20:53:09+00:00

EU UV focused configuration Used to alter the configuration line in an automated schedule Configuration set to measure 4 UV measurements per hour, with some Direct Sun and Zenith Sky measurements, No Timed UV Line 11220 in the routine altered to: NofUV%=4:DSONLY%=0:GI%=-1:UA%=0:ZP%=0:ZS%=1:ZUM%=0:IF TYP$<>

eubrewnet

Anonymous (anonymous@undisclosed.example.com) — 2023-08-03T14:01:21+00:00

EUBrewnet EUBrewnet is run by the AEMET and operates out of Tenerife. Izana Observatory

eureka

Anonymous (anonymous@undisclosed.example.com) — 2023-07-05T13:12:01+00:00

Eureka Eureka weather station is a site located on the Ellesmere Island in Nunavut. The weather station is ran by Environment and Climate Change Canada's (ECCC), Metrological Services of Canada (MSC) staff. Eureka Pearl Eureka Polar Environment Atmospheric Research Laboratory (PEARL) or the ridge lab is located 15km from Eureka. It is a remote weather station ran and operated by the Canadian Network for the Detection of Atmospheric change (

ez140

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T17:04:12+00:00

EZ140.COD Supplementary Code Supplementary Code written into the multi-board microprocessor memory on startup. This code adds a low level command “E”. This low level command is similar to the SB “I” command and sends a motor to its LED sensor and returns the number of steps counted in the process.

faq

Anonymous (anonymous@undisclosed.example.com) — 2025-12-05T16:36:27+00:00

FAQ Lamps Q: What do you have to consider after a Standard Lamp bulb change? A: Ensure brightest part of the band of light is sitting in the middle of the Iris. There are two ways to accomplish this. More... * Manually adjusting by loosening the zenith shaft and moving the shaft until the band of light lines up as shown in the picture.

fc

Anonymous (anonymous@undisclosed.example.com) — 2026-04-29T17:28:18+00:00

Filter Wheel 3 Scan

ff

Anonymous (anonymous@undisclosed.example.com) — 2023-10-30T18:55:18+00:00

FF Form Feed Forces a form feed on the printer connected to the computer.

fi

Anonymous (anonymous@undisclosed.example.com) — 2021-11-24T23:08:08+00:00

FI Neutral Density Filter Test This routine tests and records the neutral densities at the various filter wheel positions. The measurements are normally taken over 3 repetitions with each repetition taking approximately 30 minutes. The test is normally run overnight and the results are written to the FIOAVG.### file.

filter_wheel

Anonymous (anonymous@undisclosed.example.com) — 2025-03-26T12:16:10+00:00

Filter Wheel Setup and Uses This is just the standard filter wheel setup used on the Canadian Brewer Spectrophotometer Network. Other networks may differ Filter Wheel 1 Filter Wheel 2 PositionStepsAttenuationFilterNotesStepsFilterNotes0

firmware

Anonymous (anonymous@undisclosed.example.com) — 2025-01-28T15:24:44+00:00

MKIII Brewer Firmware Uploading a new firmware and config file Requirement: * [BrewCMD] * Firmware file (*.bin) in the same directory as brewCMD.exe * Corresponding Brewer config file (*.cfg) brewcmd.exe * (For linux operation, the *.bin and *.cfg should be located in /home/brewer/*)

fl

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T17:27:21+00:00

FL Fast UVB scan NOTE: This is a test routine, for research purposes ONLY. The FL routine was written in 1995 to take FAST UVB Observations. It was likely the precursor to the UF routine.

fm

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T13:17:23+00:00

FM Focused Moon Observation FM results in an O3 observation to be taken with the moon as the radiation source. The Brewer Zenith Prism and Azimuth Tracker are oriented to the moon, the Iris is opened, FW#1 is rotated to the position 3, and FW#2 is adjusted for maximum intensity, starting at position 2.

fmsum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:22:31+00:00

FMSUM Focus Moon Data Summary FMSUM results in the daily Summary (S) file being read and a printout of the ‘summary’ results of the day’s FM measurements being made. An entry is also made to the FMOAVG.nnn file. The FMSUM command is usually invoked as part of the

force_ru

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T16:56:25+00:00

FORCE_RU.rtn MKII/MKIII/MKIV Timed Collection Software Restart Forced restart of the collection software. This routine will update the information in restart.dta and will check the proximity to GMT midnight. If the time is more than one hour from GMT midnight the software is restated, otherwise it will continue in its scheduled operation.

foreoptics

Anonymous (anonymous@undisclosed.example.com) — 2025-12-18T11:58:39+00:00

Foreoptics Foreoptic Focusing Rational Suns diameter is 0.5 degrees but is magnified by the first 2 lenses by 1.5 (LE2 – 3”/ LE3 – 2”), therefore 0.5*1.5/57= 0.01316 in radians * 3” focal length = 0.03947” (1.003mm) is the size of the sun at its focal point in the visible. However the lens is placed at the UV focus of 2.85” away from the slit, so the size of the suns image will be larger by 5%. This means the suns image would be 0.03947*1.05=0.04145” (1.053mm) or about 1/3 the length of t…

fr

Anonymous (anonymous@undisclosed.example.com) — 2025-03-26T12:01:55+00:00

FR Micrometer Reset FR performs a reset of the wavelength adjust micrometers. The micrometers are moved to reference points, and then moved to the operating points as dictated by offset values contained in the instruments constants file. The FR command is invoked as part of the RE command, or the operator may manually send the FR command if the positions of the micrometers are suspect. The FR command may be used to determine new micrometer offset values, but these values should only be chang…

fuse

Anonymous (anonymous@undisclosed.example.com) — 2023-07-25T13:36:47+00:00

All The Fuses! The brewer spectrometer has a ton of fuses used for differently applications. This is what fuses ECCC uses and for where. (Not this may differ from what is shipped from the manufacture) Tracker [Tracker controller board] Inside the tracker has a 5A slow blow inline fuse for all the power including the tracker electronics and brewer

fv

Anonymous (anonymous@undisclosed.example.com) — 2021-11-30T17:56:07+00:00

FV Field of View This routine does an automated scan of the sun using the azimuth and zenith motors and configured similarly to a DS measurement. If the operator knows, without a doubt, that the sky is clear, the maximum intensity values can be used to determine input sighting values remotely for the instrument.

fw

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T12:24:58+00:00

FW MKIV/MKV FW#3 Reset This routine performs a reset of filter wheel #3 only.

fwd

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T16:49:00+00:00

FWD MKII/MKIII/MKIV Continuous Recording This routine continuously records T1,T2,T3 and the intensities via UV port at the 6 slits without moving the micrometer(s). Everything aside from the shutter is stationary during the measurement. Alternating measurements with FW1 at positions 1 and 3 are recorded.

fz

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T14:20:47+00:00

FZ Focused Sun Observation As the sun drops lower in the sky, the high Mu values result in an increasing amount of scattered radiation in the field of view of a DS observation. The FZ command allows ozone to be determined at solar angles greater than which can be achieved with a traditional DS. Scattered radiation is measured by offsetting the solar image by 1 degree from the entrance slit, and observing radiation in the vicinity of the solar disk. This scattered radiation is then subtracted f…

fzsum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:21:42+00:00

FZSUM Focused Sun Data Summary FZSUM command reads the daily Data (B) file and printouts out the ‘summary’ results of the day’s FZ measurements. The FZSUM command is usually invoked as part of the ED command.

g1

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T14:40:27+00:00

G1 MKIII Grating Synchronization Relation (ref GS) This routine records scans, with the standard lamp on, at different step-numbers to collect the necessary data to determine the relationship between the two spectrometers. RD_GS is used to reduce the data collected in the sgdddyy.### file to give the values of GS and GI needed.

g5

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T14:39:17+00:00

G5 MKIII Grating Synchronization Relation (ref GS) This routine records scans, with the standard lamp on, at different step-numbers to collect the necessary data to determine the relationship between the two spectrometers. RD_GS is used to reduce the data collected in the sgdddyy.### file to give the values of GS and GI needed.

ga

Anonymous (anonymous@undisclosed.example.com) — 2021-12-13T13:09:27+00:00

GA This routine records scans, with the standard lamp on, at different step-numbers to collect the necessary data to determine the relationship between the two spectrometers. RD_GS is used to reduce the data collected in the GAJJJYY.### file to give the values of GS and GI needed.

gac

Anonymous (anonymous@undisclosed.example.com) — 2022-03-10T13:17:36+00:00

GAC Stuff Billing address: 105 Rue McGill Montréal QC H2Y 2E5 Canada Downsview shipping address 4905 Dufferin St North York, ON M3H 5T4 Canada

geri

Anonymous (anonymous@undisclosed.example.com) — 2023-11-24T17:24:12+00:00

Enter the following code into a terminal (++ to open up a terminal) sudo apt-get update && sudo apt-get upgrade -y You may have to wait for a bit for the above set of command to finish. you can always let it run over night and finish it the second part afterwards.

get_cfg

Anonymous (anonymous@undisclosed.example.com) — 2026-04-09T15:13:01+00:00

getcfg Query and Record SB Instrument Configuration getcfg accesses the Brewer’s internal memory configuration information, and as currently written, can only overwrite an existing file within the directory. Note: The constants in this file affect the operation and calibration of the instrument, and normally are not changed unless the instrument is undergoing recalibration or has undergone repairs. This command requires operator input, and changes should be made or approved only by qualified…

gi

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T12:43:20+00:00

GI Gratings Data Collection GI initiates a routine that collects data required to calculate Grating Intercept values, which ensure that the two gratings are synchronised during scanning. The routine performs a scan on slits 1 through 5. Data is written to a GIJJJYY.nnn file, and can be processed by the RD_GS.EXE program to calculate the Grating Intercept to ensure that the two gratings are synchronised during scanning operations.

goosebay

Anonymous (anonymous@undisclosed.example.com) — 2024-11-28T12:39:35+00:00

Happy Valley-Goose bay Happy Valley-Goose Bay (Inuit: Vâli)[1] is a town in the province of Newfoundland and Labrador, Canada. Located in the central part of Labrador on the coast of Lake Melville and the Churchill River, Happy Valley-Goose Bay is the largest population centre in that region. Incorporated in 1973, it comprises the former town of Happy Valley and the Local Improvement District of Goose Bay. Built on a large sandy plateau in 1941, the town is home to the largest military air b…

gpt

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T16:45:32+00:00

GPT MKII/MKIII/MKIV Continuous Recording This routine continuously records T1,T2,T3 and the intensities via UV port at the 6 slits without moving micrometer(s). Everything aside from the shutter is stationary.

grating

Anonymous (anonymous@undisclosed.example.com) — 2023-05-16T10:30:51+00:00

Spectrometer Grating The direction of the arrow on the grating indicates the direction where the white light is. This is best indicated by the arrow should be pointing towards the shutter both on the top and the bottom on a MKIII instrument.

gs

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T12:40:36+00:00

GS Gratings Data Collection GS initiates a routine that collects data required to calculate Grating Slope and Grating Intercept values, which ensure that the two gratings are synchronised during scanning. The routine performs a scan on slits 1 through 5. Data is written to a GSJJJYY.nnn file, and can be processed by the RD_GS.EXE program to calculate the Grating Slope and Grating Intercept to ensure that the two gratings are synchronised during scanning operations.

gwbasic

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T16:03:48+00:00

GW-BASIC.exe Interpreter Programming Language GW-BASIC (Gee-Whiz BASIC) is a historic dialect of the BASIC programming language originally developed by Microsoft in the 1980s. As a self-contained interpreter, it allowed users to write, edit, and run programs directly from the DOS command line. It was included as a standard utility in early versions of MS-DOS.

he

Anonymous (anonymous@undisclosed.example.com) — 2024-02-08T18:23:43+00:00

HE Mercury Wavelength Calibration - External Lap HE is used to accurately locate the 296.728 nm line of the Mercury spectrum using an external lap, and then adjust the diffraction grating such that the five ozone operational wavelengths fall onto the appropriate exit slits.

hg

Anonymous (anonymous@undisclosed.example.com) — 2024-02-08T18:23:38+00:00

HG Mercury Wavelength Calibration HG is used to accurately locate the 296.728 nm line of the Mercury spectrum, and then adjust the diffraction grating such that the five ozone operational wavelengths fall onto the appropriate exit slits. The zenith prism rotates to the test lamps (position 0), the iris is opened, FW#1 is rotated to the quartz disk (position 1), FW#2 to ND=0 (position 0).

hgsum

Anonymous (anonymous@undisclosed.example.com) — 2023-10-30T18:45:44+00:00

HGSUM Mercury Lamp data Summary Instructs the PC to print the daily data summary of all HG tests conducted that day.

hh

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T00:18:08+00:00

HH Micrometer Positioning test This routine is not a command run from the prompt or schedule, but rather code that eliminates redundancy. When the commands HS or HL are used or executed from within a schedule the HH code is used to configure the instrument to scan HG emission lines. HS (Short wavelength) scans the 296.728 nm line while the HL (Long wavelength scans the 334.148 nm wavelength.

highspeedamp

Anonymous (anonymous@undisclosed.example.com) — 2025-02-06T17:29:01+00:00

High Speed Amp [High speed amp schematic] [High speed amp board assembly] Adjusting and Measuring the Discriminator Voltage The default setting for the discriminator voltage depends on what type of PMT is in use. For 28mm PMT (New PMT or in most MKIII/New electronics) the typically setting is around -10mV. for 52mm PMT, the typically setting is around -30mV.

hl

Anonymous (anonymous@undisclosed.example.com) — 2021-11-30T18:19:40+00:00

HL HG Long (wavelength emission line scan) This is a command but not a routine. It is run from the prompt or schedule (HL) and is used or executed from within the HH routine code. This command configures the instrument to scan the HL (Long wavelength) HG emission line, scanning the 334.148 nm line from 333.1nm to 335.1nm, scanning at 0.025nm increments.

hp

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T00:28:20+00:00

HP Grating Synchronization HP is a routine that moves the bottom micrometer to optimize the intensity going to the Photomultiplier tube at the operating position of the top micrometer. This routine is only used on MKIII (Double spectrometer) instruments.

hrg

Anonymous (anonymous@undisclosed.example.com) — 2021-03-25T15:54:43+00:00

HRG HRG login ->

hs

Anonymous (anonymous@undisclosed.example.com) — 2021-11-30T18:15:04+00:00

HS HG Short (wavelength emission line scan) This is a command but not a routine. It is run from the prompt or schedule (HS) and is used or executed from within the HH routine code. This command configures the instrument to scan the HS (Short wavelength) HG emission line, scanning the 296.728 nm line from 295nm to 284nm, scanning at 0.025nm increments.

hv

Anonymous (anonymous@undisclosed.example.com) — 2023-12-01T14:23:21+00:00

High Voltage Test (HV) The high voltage test is used to determine the PMT response depending on the voltage provided to it. Upon entering the HV command, you will be prompted with the following. The defaults may change from instrument to instrument, however those defaults values can be overridden by entering a different value and pressing enter. See

hvb

Anonymous (anonymous@undisclosed.example.com) — 2023-11-30T13:25:36+00:00

HVB (Depreciated) NOTE: As of version 7.33, HVB has been depreciated. HV will be used for both multiboard & single board electronics. High Voltage Test (MB) The HVB command is a modification of the HV command and should only be used on the multi-board electronics. The multi-board electronics is incapable of automatically performing this test meaning manual adjustments are required during the high voltage test. The HVB modification allows the technician to use the UP sighting BUTTON to indica…

hvset

Anonymous (anonymous@undisclosed.example.com) — 2026-05-27T15:53:39+00:00

HVSET High Voltage Set The HVSET command can be used to adjust for the optimum High Voltage (in single-board electronics only) as determined by the HV test.

ic

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T22:08:12+00:00

IC Instrument Configuration File Update The IC command results in a display of the Instrument’s current configuration and allows changes to be made by the operator. See Appendix B for details of the configuration options available.

icf

Anonymous (anonymous@undisclosed.example.com) — 2026-08-12T10:40:18+00:00

ICF NameDescriptiono3 Temp coef 1 Temperature coefficient normalized to zero for slit #1 o3 Temp coef 2 Temperature coefficient for slit #2 relative to slit #1 (Slit #2 TC - Slit #1 TC) o3 Temp coef 3 Temperature coefficient for slit #3 relative to slit #1 (Slit #3 TC - Slit #1 TC)

ideas

Anonymous (anonymous@undisclosed.example.com) — 2025-12-17T14:09:12+00:00

Integrated Data Evaluation and Analysis System (IDEAS) database External (but useful) links open.php - Data that has been loaded (by day) alldata.php - Shows all the instrument and how much data its collected (by year) compare_soft_to_master_db.php - Compares the brewer software between station and master program directory Tips To add instruments, navigate to the _data_directories_ database, copy one one of the existing instrument, and then modify the path.

idle

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T21:03:52+00:00

IDLE South Pole Observatory Winter No Moon Available Schedule This is a historic schedule that works outside of current automated scheduling. This schedule was specifically written to optimize diagnostic measurements at the South Pole Observatory during the winter months while the moon measurements were not observable.

inside

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T21:09:24+00:00

INSIDE Indoor Diagnostics Schedule This is a historic schedule that works outside of current automated scheduling. This schedule was specifically written to optimize diagnostic measurements while the instrument was inside for repair. A comprehensive suite of diagnostics measurements are included in this schedule for troubleshooting and analytical purposes.

inti

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T12:32:28+00:00

INIT MKII/MKIII/MKIV Initialization Routine This routine initializes several global variables and arrays for the Brewer.

ioboard

Anonymous (anonymous@undisclosed.example.com) — 2025-04-01T10:59:41+00:00

Input/Output Board The input and output board deals with all the control of the Secondary Power Supply (SPS) lamp, motor, and control buttons for the brewer. These boards can be configured to different type of board depending on the need. This is usually determined output it is used for (see). There mainly two types of board being used, the original Sci-Tech board and the IOS board. The major differences are the IOS board has made it easier to change board types by using different jumpers wher…

js

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T12:37:27+00:00

JS MKIV Jump Scan This routine performs ds jump scan observations in NO2 (n2) mode.

k1

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T14:25:06+00:00

K1 MKII/MKIII/MKIV Set Up and Repeat Auto Sequence This is a historic routine that works outside of current automated scheduling. The routine loops through Focus Moon measurements if sun angles are acceptable (i.e. sun is below the horizon). Moon phases are not considered in this code.

k2

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T14:28:23+00:00

K2 MKII/MKIII/MKIV Set Up and Repeat Auto Sequence This is a historic routine that works outside of current automated scheduling. The routine loops through Focus Sun measurements if sun angles are acceptable (i.e. sun is low on the horizon). UV and ZS measurements are also included to a lesser extent.

ka

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T14:31:27+00:00

KA MKII/MKIII/MKIV O3 Umkehr Measurement This is a historic routine that works outside of current automated scheduling. Used in schedule proceeding modfied UM.rtn to cause UM to execute repeatedly 500 times, or until the next zenith angle schedule is reached.

kb

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T14:33:25+00:00

KB MKII/MKIII/MKIV O3 Umkehr Measurement This is a historic routine that works outside of current automated scheduling. Used in schedule proceeding modfied UM.rtn to cause UM to execute 1 time, or until the next zenith angle schedule is reached.

kc

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T14:34:23+00:00

KC MKII/MKIII/MKIV O3 Umkehr Measurement This is a historic routine that works outside of current automated scheduling. Used in schedule proceeding modfied UM.rtn to cause UM to execute 2 times, or until the next zenith angle schedule is reached.

l1

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T14:43:51+00:00

L1 MKII/MKIII/MKIV Set Up and Repeat Auto Sequence This is a historic routine that works outside of current automated scheduling. The routine loops through UV measurements if sun is above the horizon (i.e. sunlight is present).

lamp

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T18:59:45+00:00

Lamps The brewer spectrometer has two internal lamps for diagnostics and operational use. * Standard Lamp (SL) * Mercury (HG) Standard Lamp The purpose of of the standard lamp is to determine instrument stability by monitoring the standard lamp ratios. The double ratios (R6/R5) are used as part of the calculation to determine the total column ozone and SO2 measurements. This can be measured by running the

lf

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:58:09+00:00

LF Location File Update The LF command displays a list of some of the known locations of Brewer sites throughout the world. The geographical co-ordinates of the current site may be entered and/or modified.

linux

Anonymous (anonymous@undisclosed.example.com) — 2024-12-31T23:02:08+00:00

Linux - Additional Tricks and Tips WINE - Not the drinking kind... Comports setting Method 1 (regedit) * Go to regedit via wine regedit Navigate to /HKEY_Local_Machine/Software/Wine/Ports and add a new string called com1. Set the data to the comport (I.E. /dev/ttyUSB0)

ll

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:57:31+00:00

LL Location Update The LL command allows an operator to change the co-ordinates of a Brewer location, or for the selection of another site contained the location file.

loc

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T13:27:58+00:00

LOC.fil Brewer Station Location Information This file is a list of station names, locations and standard atmospheric pressures accessed by the collection software through the LL.RTN.

lz

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T13:31:42+00:00

LZ MKII/MKIII/MKIV Diagnostics This routine searches for the zeroing sensor on the zenith.

m2

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T14:46:10+00:00

M2 MKII/MKIII/MKIV Set Up and Repeat Auto Sequence This is a historic routine that works outside of current automated scheduling. The routine loops through DS, ZS and UV measurements if sun is above the horizon (i.e. sunlight is present).

main

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T13:37:22+00:00

MAIN.asc Core Brewer Collection Software Program This is the main program from which all routines are called.

maintenance

Anonymous (anonymous@undisclosed.example.com) — 2026-04-29T17:17:09+00:00

Brewer Spectrometer Maintenance * * Note this page is base off of the Canadian Brewer Spectrometer Network's (CBSN) Operator SOP which is Alert Global Atmosphere Watch (GAW) lab wiki document prepared by Kevin Rawling and Michael Brohart and how the CBSN operates their brewers * *

metabase

Anonymous (anonymous@undisclosed.example.com) — 2021-08-12T15:29:15+00:00

Metabase To update Metabase Stop the metabase service Update the metabase.jar Download the latest metabase.jar Start the service again Double check the metabase to ensure its update and running http://142.97.231.40:3000/

mf

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T14:16:31+00:00

MF MKII/MKIII/MKIV Direct Moon Observations Direct Moon Scan

micrometer

Anonymous (anonymous@undisclosed.example.com) — 2024-10-31T13:40:24+00:00

Micrometer Everything about micrometers! Micrometer terms explained! Software Micrometer Movements It is important to check to see if the micrometers can actually move from one end to the next without getting jammed, or having lack of spring tension. There two ways to check for this.

mlo

Anonymous (anonymous@undisclosed.example.com) — 2026-01-20T15:41:52+00:00

Mauna Loa Observatory Mauna Loa Observatory (MLO), situated on Hawaii’s Mauna Loa volcano, is an atmospheric baseline station operated by the National Oceanic and Atmospheric Administration (NOAA). Under an agreement with NOAA, Environment and Climate Change Canada (ECCC) owns two Brewer instruments at the site (009 and 119), which NOAA maintains. During calibration visits, ECCC also deploys one or occasionally two Triad instruments to conduct absolute calibrations. MLO’s high elevation, equa…

mm

Anonymous (anonymous@undisclosed.example.com) — 2025-08-12T13:54:41+00:00

MM TeleType Communications MM sets the Brewer program to its teletype (terminal) mode, whereby the operator may communicate directly with the Brewer via the computer keyboard and a set of low level commands. Exit from teletype mode by typing EXIT. See Appendix H for more explanation on the TeleType feature.

motor

Anonymous (anonymous@undisclosed.example.com) — 2026-07-15T11:36:55+00:00

Motor Positions Motor #/NameNumber of stepPositionCommands1. Zenith Prism0Pointing at standard lampM,1,01408Pointing at zenith skyM,1,14082112Pointing at UVB portM,1,21122. Azimuth Tracker0Referance direction (North)M,2,014680Referance direction, 1 full turn from step #0

multiboard

Anonymous (anonymous@undisclosed.example.com) — 2025-11-27T11:59:40+00:00

Multiboard Electronics The Multiboard electronics, sometimes referred to old electronics are usually used in the MKII and MKIV Brewers. Some of the earlier MKIII brewers may also be running the multiboard electronics. The multiboard electronics consist of the primary power supply¹ (PPS),

n1

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T14:51:03+00:00

N1 MKII/MKIII/MKIV Set Up and Repeat Auto Sequence This is a historic routine that works outside of current automated scheduling. The routine loops through DS, ZS and UV measurements if sun is above the horizon and uses a “Clearness Flag” from the UV measurement to trigger either ZS or DS measurements.

name

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T16:40:01+00:00

NAME.fil Instrument Constants Headers This file lists the Instrument Constants File Name Headers for the ICF file items in order. NAME.fil is used for the multi-board Brewers while NAME2.fil is for the single board Brewers. The only difference is line item 14 is listed as Slitmask motor delay for the multi-board system (NAME.fil) and unused for the single board system (NAME2.fil).

name2

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T16:39:37+00:00

NAME2.fil Instrument Constants Headers This file lists the Instrument Constants File Name Headers for the ICF file items in order. NAME2.fil is used for the single board Brewers while NAME.fil is for the multi-board Brewers. The only difference is line item 14 is listed as Slitmask motor delay for the multi-board system (NAME.fil) and unused for the single board system (NAME2.fil).

network

Anonymous (anonymous@undisclosed.example.com) — 2020-12-03T13:54:28+00:00

ECCC Brewer Spectrometer Network There are three stages of the data transfer for the Brewer Spectrometer. Station At the station each computer computer typically runs one to two (1-2) Brewer Spectrometers. Brewer files are saved in the following location

new

Anonymous (anonymous@undisclosed.example.com) — 2020-11-16T14:26:06+00:00

test page nothing is here

newinst

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T15:36:29+00:00

NEWINST MKII/MKIII/MKIV Create New Instrument THIS IS NOT A ROUTINE TO BE GIVEN TO CUSTOMERS This routine is used to aid in the setup of a newly assembled instrument. Existing instrument data is used and this routine changes the current instrument number, and copies the data from the old instrument number in order to give a starting point for the assembled instrument. If the new instrument number already exists, the copying is NOT done.

ni

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T16:26:32+00:00

NI MKII / MKIII / MKIV Extended CZ Scan This routine performs a complete, customizable scan of a selected port. Options are controlled by modifying the NI.cfg configuration file

nm

Anonymous (anonymous@undisclosed.example.com) — 2025-01-15T16:31:44+00:00

NM NM uses the same routine as CJ, however it doesn't move the micrometer. This is to test the stability of the bulb To run this, you must turn on the bulb either the standard lamp or mercury bulb first.

nosum

Anonymous (anonymous@undisclosed.example.com) — 2026-05-27T17:18:47+00:00

NOSUM MKIV DS and ZS NO2 Summary This routine outputs a summary list of direct sun and zenith sky observations for the current day. All data is generated from NO2 observations.

operation_information

Anonymous (anonymous@undisclosed.example.com) — 2023-05-29T14:05:52+00:00

Operation Information Syntax ? for read ! for write nameFormat of valuewriteableDescriptionANALOG.NOW []10-bit integernoA/D output value in A/D unitsBREAK.ABORT.TIME float secondsYes, reset to 0.25 on tepid resetsThe elapsed time in seconds for a continuous TTY line-break to abort command processing.

opst

Anonymous (anonymous@undisclosed.example.com) — 2026-08-12T12:06:50+00:00

OP_ST There is two types of OP_ST or Operation State files. * OP_ST.### * OPAVG OP_ST.### The OP_ST.### is the operation state and that includes what motors are enable/disable, how the instrument is setup hardware wise, sightings and etc. Some of these items are controlled via

op_st

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T15:07:09+00:00

OP_ST.fil Brewer Instrument and Data Directory Information This file lists the three digit instrument identifier and the instrument data directory location to be used by the collection software.

os

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T15:00:40+00:00

OS MKIV Jump Scan This routine performs ds jump scan observations in NO2 (n2) mode. Similar to the JS Routine, however this routine is configurable using the OS.FIL

ozsum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:22:15+00:00

OZSUM Ozone Summary OZSUM reads the daily Date (B) file and prints out the summary results of the day’s O3observations. In addition an entry is made in the OZOAVGYY.nnn file. The OZSUM command is usually invoked as part of the ED command. See Appendix A for an example of the OZOAVGYY.nnn file.

pb

Anonymous (anonymous@undisclosed.example.com) — 2026-05-27T16:14:38+00:00

PB Data Playback Command Syntax: PB BJJJYY. The PB command allows any previous day’s data to be printed using the current temperature coefficients.

pd

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T11:01:30+00:00

PD Print to Disk PD directs printing to a “D” file on the data drive rather than to the line printer. See also PN, PF. PD at the start of a command string opens the “D” file and records the results from the following commands in the string in a more readable format than is seen in the raw data

pf

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T11:15:58+00:00

PF PF Printer Off PF turns off all printing. Raw data continues to be recorded. See also PN, PD. Historically magnetic media had limited space. So, in order to save disk space only the raw data was saved. The more easily read “D” file was printed on paper. To save paper, only diagnostics or measurements to ensure proper instrument function was printed. As magnetic storage became larger, space was no longer a concern and this command was no longer needed within the Canadian Brewer Spectrom…

photon_counter

Anonymous (anonymous@undisclosed.example.com) — 2025-09-16T11:49:52+00:00

Photon Counter Board The photon counter board is used to count the intensity count coming from the PMT. [photon counter board schematic] [photon counter board assembly] [photon counter board wiring harness] DB9 Connector The DB9 Connector going from the PMT to the photon counter board DB9 Pin# BoardDB9 Pin# PMTUse11Negative Signal A22Negative Signal B

pmt

Anonymous (anonymous@undisclosed.example.com) — 2025-12-18T12:11:13+00:00

PMT PMT = Photo Multiplier Tube. {More things to be added} Tests Performed to Ensure High Speed Amp Function If the function of the High Speed Amp is in question it can be tested using an oscilloscope. Monitor test point TP4 on the high speed amp board, and then pins 1,2,3,4, and 12,13,14, 15 of the IC, SN75114N. Each should produce a clean square wave, the frequency of which should vary with light intensity

pn

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T11:22:04+00:00

PN Printer ON PN directs printing to the line printer. See also PD, PF. Historically magnetic media had limited space. So, in order to save disk space only the raw data was saved. The more easily read “D” file was printed on paper. To save paper, only diagnostics or measurements to ensure proper instrument function was printed. As magnetic storage became larger, space was no longer a concern and this command was no longer needed within the Canadian Brewer Spectrometer Network.

po

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T11:32:55+00:00

PO Printout Instrument Constants PO generates a printout of the instrument constants file. It is advised that a PO command is triggered from within developed schedules to be run and written to the “D” file at the beginning of each day. This can be valuable information in understanding the collected data.

purchasing

Anonymous (anonymous@undisclosed.example.com) — 2022-03-10T15:53:32+00:00

Purchasing Useful Links: GAC Addresses NBC login page

pz

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T11:36:02+00:00

PZ Point to Zenith PZ results in the Zenith Prism being pointed to a Zenith angle of 0° (straight upwards).

ql

Anonymous (anonymous@undisclosed.example.com) — 2024-01-17T13:08:57+00:00

QL Quick UV Lamp Scan QL routine is used for performing UV calibrations on the Brewer Spectrometer. It is a test command that results in a UV scan being performed with a Lamp (rather than the sky) being the source of radiation. The zenith prism is rotated to the UV dome, FW#2 is set to the

re-sb

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T13:47:19+00:00

RE_SB MKII/MKIII/MKIV Reset Single Board Brewer and Motor Initialization This routine performs a reset on all Brewer motors. This code is used by the RE.rtn when the instrument configuration file indicates a single board Brewer is in use.

re

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T21:41:21+00:00

RE Reset Initialises all of the Brewer motors (similar to the ‘Power On’ initialization), and moves them to positions as defined in the Instruments Constants File. Following an RE, the iris is closed, FW#1 is in position 1 and FW#2 is in position 3.

reno_links

Anonymous (anonymous@undisclosed.example.com) — 2021-04-07T10:49:30+00:00

Brewer Logforms open.php - Data that has been loaded (by day) alldata.php - Shows all the instrument and how much data its collected (by year) compare_soft_to_master_db.php - Compares the brewer software between station and master program directory 142.97.231.40 To find all dosbox process -------> To find all process using a serial port --

rep

Anonymous (anonymous@undisclosed.example.com) — 2026-05-27T16:21:46+00:00

REP Report REP displays (or prints) the SLOAVG, HGOAVG, APOAVG, DTOAVG, MIOAVG, and RSOAVG over a user selected range of days.

resolute

Anonymous (anonymous@undisclosed.example.com) — 2025-07-23T17:45:04+00:00

Resolute Bay Resolute[3] or Resolute Bay[5] (Inuktitut: ᖃᐅᓱᐃᑦᑐᖅ, romanized: Qausuittuq, lit. 'place with no dawn'[6]) is an Inuit hamlet on Cornwallis Island in Nunavut, Canada. It is situated at the northern end of Resolute Bay and the Northwest Passage and is part of the Qikiqtaaluk Region.

restart

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T16:17:29+00:00

RESTART.rtn MKII/MKIII/MKIV Timed Collection Software Restart Timed refresh of the program to clean up potential memory leaks. This routine monitors restart.dta and if the software has not been restarted beyond a 2 hour window, the restat.dta file will be updated to the current time and the software restated, otherwise it will continue in its scheduled operation.

re_mb

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T13:47:53+00:00

RE_MB MKII/MKIII/MKIV Reset Multi-board Brewer and Motor Initialization This routine performs a reset on all Brewer motors, except the micrometer(s). This code is used by the RE.rtn when the instrument configuration file indicates a multi-board Brewer is in use.

rl

Anonymous (anonymous@undisclosed.example.com) — 2025-02-12T13:48:32+00:00

Read Log (RL) This command will only work for brewers with Single Board Electronics installed. This will display past error history, each line displayed will be a possible clue to the problem that caused the failure. If motor failures have occurred, the status will tell you which motor and what the failure is. Usually it is a sensor problem or a wiring problem that prevents the motor from resetting. If no problems are displayed, then the system can be placed back into cosmac mode for further t…

rs

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T16:03:07+00:00

RS Slit Mask "Run/Stop" Test The RS test produces a report on the operation of the Slit Mask Motor by taking measurements in the “Running” and “Stopped” modes of the Slit Mask Motor. The test results are recorded in the RSOAVG file. RS values consistently outside the range of 0.997 to 1.003 for Slit Mask positions 2 to 6 should be investigated.

rt

Anonymous (anonymous@undisclosed.example.com) — 2026-04-09T14:21:00+00:00

RT Remote Testing (RT) Brewer Remote testing of the Brewer using sighting push buttons. This will also tests the push button switches. Usage: Always: CCW = Switch to Mode 0 Mode 0: UP/DOWN = move IRIS CW = Switch to Mode 1/2/3 (iris closed/mid/open)

ru

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T12:35:03+00:00

RU Reset and Resume This command periodically stops data collection, clears the memory and resumes data collection to address minute memory leaks that would eventually accumulate and cause issue with the collection software.

sa

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T18:49:53+00:00

SA MKII/MKIII/MKIV Solar and Lunar Angles This routine calculates Solar and Lunar angles and MU values for the current Brewer location and GMT day. Calculations are in user defined increments over the time period selected.

saturna

Anonymous (anonymous@undisclosed.example.com) — 2023-08-03T13:47:52+00:00

Saturna Island Picture: Overview of the Saturna site- Taken by Reno Sit. Saturna Island is a mountainous island, about 31 square kilometres (12 sq mi) in size, in the Southern Gulf Islands chain of British Columbia, Canada. It is situated approximately midway between the Lower Mainland of B.C. and Vancouver Island, and is the most easterly of the Gulf Islands. It is surrounded on three sides by the Canada–United States border. To the north is Point Roberts, Washington, and to the east and so…

saveall

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T18:47:05+00:00

SAVEALL Open for Saving Code to open and append to a created file based on the day header name. RET = 1 RET = 1: A$=DD$+HD$+JD$+YF$+“.”+NO$:CLOSE 1:OPEN A$ FOR APPEND AS 1

savedh

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T18:43:08+00:00

SAVEDH Save Day Header Code to create a file based on the day header and open to append. RET = 1: A$=DD$+HD$+JD$+YF$+“.”+NO$:CLOSE 1:OPEN A$ FOR APPEND AS 1

sc-full

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T18:31:22+00:00

SC-FULL MKII/MKIII/MKIV O3 Direct Sun Scan Test SC is normally a factory pre-calibration test and determines the optimal operating position of the diffraction grating(s) for taking ozone measurements. Each individual scan is saved to a SCJJJYY.NNN data file, the SC output average values are added to the SCOAVG.NNN file. This command can not be used in schedules. A set of good sun scans taken between zenith angles of 48 and 66 degrees will provide useful information preliminary to an ozone re-c…

sc

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T18:33:38+00:00

SC MKII/MKIII/MKIV O3 Direct Sun Scan Test SC is used during instrument calibration and determines the optimal operating position of the diffraction grating(s) for taking ozone measurements. Each individual scan is saved within the raw Bdata file. This command can be used in schedules. A set of good sun scans taken between zenith angles of 48 and 66 degrees will provide useful information preliminary to an ozone re-calibration.

schedule

Anonymous (anonymous@undisclosed.example.com) — 2023-09-12T18:25:52+00:00

Schedule (Program) A schedule is an easy way to automate a brewer to run specific commands depending on the sun angle. it is often used with the auto-routine which takes automation to another level. To create your own schedule, simple create a text file with 'skd' as the extension (*.skd). The schedule file should be placed in

sd

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T18:23:41+00:00

SD Solar Diameter Scan SD initiates a routine to scan and measure the solar image diameter on the entrance slit.

se

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T18:15:37+00:00

SE MKII/MKIII/MKIV Schedule Editor This is a historic routine that works outside of current automated scheduling. The routine is used to setup manually organized scheduling based on sun angle triggers.

serialgear

Anonymous (anonymous@undisclosed.example.com) — 2025-02-27T15:18:37+00:00

Serial Gear DIP switch settings Operation ModeS1S2S3S4RS-232Standard RS242 ModeOffOnOnOnRS-4224 Wire with handshakingOnOnOnOnRS485Full Duplex (4 wire)OnOffOnOnHalf Duplex (2 wire) with echoOnOffOffOnHalf Duplex(2 wire) without echoOnOffOffOff pinouts

setdate

Anonymous (anonymous@undisclosed.example.com) — 2026-06-18T17:34:29+00:00

SETDATE.EXE Supplementary Code SETDATE.EXE is a small, DOS based, program that can be called from the batch file just before running the Brewer control software. The program updates the date in the op_st.### file using the computer clock setting. Also, the program sets A/D board option to 'YES' since we have seen a number of cases when this option was set to 'NO' by the control software without the user knowledge.

sh

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T19:09:18+00:00

SH Slit Mask (shutter) Motor Timing Test Normally a factory test, the SH command is used to determine the timing constant used in the control of the slit mask motor.

shiccal

Anonymous (anonymous@undisclosed.example.com) — 2023-08-03T10:26:18+00:00

SHICCal Setup Prerequisite * SHIC software must be reside in your root directory. C:\SHICrivm * UAView software * All ### should be changed to the respective instrument number Processing UV data The UV data must first be process before SHIC is able to ingest the data.

shutter

Anonymous (anonymous@undisclosed.example.com) — 2026-05-09T16:44:49+00:00

Shutter Everything you need to know about shutters! Differences in the shutter control between singleboard electronics and multiboard electronics Singleboard ElectronicsMultiboard ElectronicsShutter delayTypically the default is left at 14. This changings the speed of the shutter

si

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T22:05:02+00:00

SI Refer to SIM for moon sighting. SI is used to perform a sun sighting on the brewer. It is suggested to run an AZ and ZE prior to doing the SI to ensure the brewer is pointing correctly. Sun sighting should be done once every 2 weeks to ensure the instrument is pointed correctly and measuring well.

sidebar

Anonymous (anonymous@undisclosed.example.com) — 2025-12-19T13:37:53+00:00

Brewer * Brewer Instrument Information * Brewer Software * Commands * Documents * FAQ * Multiboard Electronics * Singleboard Electronics * Brewer Log Summary * Purchasing External Links * exp-studies * Brewer Logs * Metabase * IDEAS database * USAP (SPO) * Solar Calc * PSPC City rate limit * Car Rentals

sim

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T22:04:54+00:00

SIM Lunar Siting The SIM command is used to perform a lunar siting on the brewer when the lunar disc is used as the radiation source. After the date, time, and station co-ordinates have been set accurately, a set of four controls on the front of the instrument are used to introduce ‘Horizon’ and ‘North’ corrections which compensate for any offsets that may occur. These corrections are saved and used by the software in future pointing calculations.

singleboard

Anonymous (anonymous@undisclosed.example.com) — 2026-07-14T15:11:11+00:00

Single Board Electronics The single board electronics, sometimes referred to new electronics are usually used in the MKIII Brewers. There's a very small numbers of MKIV brewers that may run a single board electronics. The single board electronics consist of the primary power supply¹ (PPS), lamp control board and the high voltage module. There are two version of the single board electronics, V1 and V2. See

sk

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T03:10:50+00:00

SK Scheduled Operation SK allows an operating schedule, manually created or created by the SE command to be run for the current day. At the end of the schedule, the program returns to the main menu and must be restarted the next day. If continuous scheduled operation is desired, then please refer to the

skc

Anonymous (anonymous@undisclosed.example.com) — 2024-01-30T13:10:11+00:00

SKC Continuous (scheduled) Operation SKC allows an operating schedule, manually created or by the SE command, to be run continuously - that is, at the end of the local day a set of summary records is produced (see ED), and the schedule waits for the beginning of the next day and the schedule starts again.

sl

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T01:56:40+00:00

SL Standard Lamp Test SL initiates the most important quality assurance test in the Brewer commend set. This test essentially performs an ozone measurement using an internal quartz-halogen lamp as the source. The test should be run at least at the start and end of the day and should be preceded by an hp and an hg, The values of R5, R6, and F1 should be monitored carefully, and any changes should be noted and investigated.

slope_intercept

Anonymous (anonymous@undisclosed.example.com) — 2026-05-25T15:05:15+00:00

Slope and Intercept The Slope and Intercept values describe a relation of the bottom micrometer step movement to the top micrometer step movement. The top micrometer movement per wavelength is determined by the dispersion file in use by the instrument.

slsum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:25:10+00:00

SLSUM Standard Lamp Summary SLSUM reads the daily Data (B) file and prints out the ‘summary’ results of the day’s SL tests In addition entries are made in the SLOAVG.nnn file. The SLSUM command is usually invoked as part of the ED command.

software

Anonymous (anonymous@undisclosed.example.com) — 2022-05-13T20:48:33+00:00

Brewer Software [BFile Pro V1.9.1.2] - Dec 04, 2020 ...B file pro is a software that is used to analyze the brewer's B files. With this software you are able to view measurements like Sun Scan, Ozone, UV and other measurements throughout the day and compare with different instruments. This is also a tool used to perform an ozone calibration for the Brewer Spectrometer.

software_setup

Anonymous (anonymous@undisclosed.example.com) — 2025-11-06T16:57:36+00:00

Setting up a Brewer on a New Computer Note: For setting up a new brewer on an existing computer, skip to setting up the brewer software ... ... Setting up the computer * Change the ntp server: ...Note: sudo or root access is required to edit this file. When using root command, you will be required to enter the user password.

sop

Anonymous (anonymous@undisclosed.example.com) — 2020-11-26T15:04:29+00:00

SOP

sp

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T18:04:24+00:00

SP MKII/MKIII/MKIV Set Up and Repeat Auto Sequence Adapted au.rtn for SPO This is a historic routine that works outside of current automated scheduling. The routine sets up a command sequence of several measurements, and was specifically designed for the characteristics of the South Pole Observatory winter. Minimal measurements with some diagnostics.

spectrometer

Anonymous (anonymous@undisclosed.example.com) — 2025-01-27T10:57:48+00:00

All about Spectrometer This page is mainly split to Three different section. * Common information * Single Spectrophotometer (MKII, and MKIV) * Double Spectrophotometer (MKIII) Common Information Direction of the lens Object should appear tall and thin and concave surface should be facing (Direction of light travel) towards the slits or PMT

spectrometer_focusing

Anonymous (anonymous@undisclosed.example.com) — 2026-01-26T19:33:19+00:00

Introduction The scope of this document is to guide an experienced technician in optimizing the signal entering the photomultiplier tube of the Brewer Spectrophotometer by ensuring the optical path is correct and the optical components are positioned correctly. Some Brewer Spectrophotometer have been found to have ‘Non Focused’ spectrometers from production. This means that the light does not travel along the optical plane horizontally but rather travels at different angles through the spectrom…

spmoon

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T21:01:52+00:00

SPMOON South Pole Observatory Winter Moon Schedule This is a historic schedule that works outside of current automated scheduling. This schedule was specifically written to optimize measurements at the South Pole Observatory during the winter months while the moon measurements were observable.

spo

Anonymous (anonymous@undisclosed.example.com) — 2021-07-01T12:14:24+00:00

Amundsen-Scott South Pole Station The Amundsen–Scott South Pole Station is the United States scientific research station at the South Pole of the Earth. It is the southernmost point under the jurisdiction (not sovereignty) of the United States. The station is on the high plateau of Antarctica at 2,835 metres (9,301 feet) above sea level. It is administered by the Division of Polar Programs of the National Science Foundation, specifically the United States Antarctic Program (USAP). It is named…

sps

Anonymous (anonymous@undisclosed.example.com) — 2025-02-04T14:05:30+00:00

Secondary Power Supply The secondary power supply (SPS) is a board that supplies regulated +5VDC and -8VDC. It also has the circuitry to control the standard lamp (SL), mercury lamp (HG) temperature monitoring, stepper motor power and high voltage power (HV).

spsun

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T20:59:06+00:00

SPSUN South Pole Observatory Summer Schedule This is a historic schedule that works outside of current automated scheduling. This schedule was specifically written to optimize measurements at the South Pole Observatory during the summer months. Calls routines SQ and SP that call command sequences suitable for the South Pole location during this time of year.

sq

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T18:05:59+00:00

SQ MKII/MKIII/MKIV Set Up and Repeat Auto Sequence Adapted au.rtn for SPO This is a historic routine that works outside of current automated scheduling. The routine sets up a command sequence of several measurements, and was specifically designed for the characteristics of the South Pole Observatory spring and fall. Observations with a compliment of low sun angle measurements.

sr

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T21:30:19+00:00

SR Azimuth Tracker Steps Per Revolution Initiates a test that determines the number of motor steps required for one complete revolution (360°) of the Azimuth Tracker. The operator is given an opportunity to save the new value. A progressive change of value over time may suggest that Tracker maintenance is required.

st

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T21:34:09+00:00

ST Status and Control Permits the operator to switch the Brewer’s internal lamps off and on, and to control all Brewer stepper motors except the Slit Mask Motor.

start

Anonymous (anonymous@undisclosed.example.com) — 2024-09-03T13:24:28+00:00

The Brewer Spectrometer's Wiki ----------

station

Anonymous (anonymous@undisclosed.example.com) — 2023-03-29T16:16:27+00:00

Stations The Brewer network consist of 9 Canadian and 2 American sites Click on the arrow to reveal the DS/UV/ZS/FM plots for that instrument. These plots are created and provided via Exp-Studies Sites Brewers AlertALR019.++, 029.++, 246.++CAREEGBChurchillCHU203.++, 239

station_ip

Anonymous (anonymous@undisclosed.example.com) — 2026-08-25T08:00:01+00:00

Station IP List StationIPNotesALR1131.235.248.42This is the GAW Lab router IP, not the computer IPCHU1131.235.226.105 CHU2131.235.226.100 EUR1131.235.246.40 EUR2131.235.246.39 EDM1131.235.178.154 EDM2131.235.178.153 GOS1goo.brewer.hiitravel.ca

stony

Anonymous (anonymous@undisclosed.example.com) — 2023-05-30T20:09:26+00:00

Stony Plain Picture: Overview of the Stony Plain site - Taken by Reno Sit. Stony Plain is a town in the Edmonton Metropolitan Region of Alberta, Canada within Parkland County. It is located west of Edmonton adjacent to the City of Spruce Grove. Stony Plain is known for its many painted murals representing various periods, events and people throughout the town's history. The town was originally known as Dog Rump Creek.[5]

sum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T22:09:04+00:00

SUM Summary Data File SUM reads the daily raw data (BJJJYY.nnn) file and generates a new (SJJJYY.nnn) file which contains only data summary information. In addition, Umkehr data is processed and put into a separate (UJJJYY.nnn) file.

sw

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T17:58:49+00:00

SW MKIV Switch Operating Modes This routine switches a MKIV Brewer from O3 to NO2 mode, or vice-versa.

sz

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T18:06:57+00:00

SZ MKII/MKIII/MKIV Set Up and Repeat Auto Sequence Adapted au.rtn for SPO This is a historic routine that works outside of current automated scheduling. The routine sets up a command sequence of several measurements, and was specifically designed for the characteristics of the South Pole Observatory Summer.

tcsum

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T12:48:10+00:00

TCSUM Temperature Coefficient Summary Change changes a daily summary file using updated temperature coefficients.

td

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T12:50:13+00:00

TD Time and Date This command synchronizes the software Date/Time with the computer clock. It is very important that the computer clock be within 5 seconds of the true time. The time, ephemeris data and location are used to calculate where to point the Brewer when making measurements.

tf

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T02:06:20+00:00

TF Neutral Density Filter Test This routine tests and records the neutral densities at the various filter wheel positions to the file FW2TEST.###

to1mk2um

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T20:41:04+00:00

TO1MK2UM Toronto MKII Umkehr Schedule This is a historic schedule that works outside of current automated scheduling. This schedule was specifically written to optimize umkehr measurements over the winter months. November 16th through January 24th

to2mk2um

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T20:44:19+00:00

TO2MK2UM Toronto MKII Umkehr Schedule This is a historic schedule that works outside of current automated scheduling. This schedule was specifically written to optimize umkehr measurements over the late Fall and late winter months. November 1st through November 15th

to3mk2um

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T20:47:07+00:00

TO3MK2UM Toronto MKII Umkehr Schedule This is a historic schedule that works outside of current automated scheduling. This schedule was specifically written to optimize umkehr measurements over the early Spring and early Fall months. February 9th through March 2nd

to4mk2um

Anonymous (anonymous@undisclosed.example.com) — 2026-05-28T20:49:30+00:00

TO4MK2UM Toronto MKII Umkehr Schedule This is a historic schedule that works outside of current automated scheduling. This schedule was specifically written to optimize umkehr measurements during the warmer months. March 3rd through October 9th This schedule has been run exclusively on Brewer #015

toronto

Anonymous (anonymous@undisclosed.example.com) — 2023-03-29T16:15:00+00:00

Toronto - World Calibration Center Toronto Calibration Timing GMT TimezoneLocal Canada/Eastern (UTC -5)MM/DDHH:mm:ssMMddHHmmssAirMass3/1213:00:003129004.038863/1213:30:0031293003.026453/1214:00:0031210002.453563/1214:30:00312103002.094593/1215:00:00

tu

Anonymous (anonymous@undisclosed.example.com) — 2021-11-19T21:38:50+00:00

TU Test UV port Alignment Uses an external quartz-halogen lamp mounted over the UV dome to find the zenith motor step position for which the radiation intensity is a maximum through slit #1 of the spectrometer slit mask. This is an alignment test and should be performed if alignment of the UV optics is suspect. The results of the factory tests are found in the Final Test Record and are nominally 2112 +/- 4 steps.

u5

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T17:47:20+00:00

U5 MKII/MKIII/MKIV O3 Umkehr Measurement This is a historic routine that works outside of current automated scheduling. The routine loops through 5 Umkehr measurements before moving on to other commands within a schedule.

ua

Anonymous (anonymous@undisclosed.example.com) — 2026-05-27T16:40:57+00:00

UA Timed Extended UV Wavelength Scan UA performs an Extended UV scan in 0.5nm increments and stores the data to a UVJJJYY.nnn file. This is a ‘timed’ routine in that it starts on the next half hour after the command is given. On execution of the command, the prism is rotated to the UV dome, FW#2 is moved to the 1 position, FW#1 is moved to the 3 position, the iris is opened, and the tracker is pointed at the sun.

ub

Anonymous (anonymous@undisclosed.example.com) — 2026-05-27T16:45:45+00:00

UB MKII/MKIII/MKIV DUV Summary for the Day Raw UV scan data is stored in a UVJJJYY.nnn data file. This routine takes the UVJJJYY.nnn file created for the day and re-calculates the DUV values for each scan in the file. The individual DUV results are printed and the daily integral value is appended to a DUVJJJYY.nnn file.

uf

Anonymous (anonymous@undisclosed.example.com) — 2026-05-27T16:50:36+00:00

UF Fast UVB scan UF results in a UV scan being done in the ascending wavelength direction only. The zenith prism is rotated to the UV dome, FW#2 is set to the 1 position, FW#1 is set to the 3 position, the iris is opened, and the tracker is pointed to the sun. The UV spectrum is scanned in steps of 0.5nm, widths and integration of 4 shutter cycles for wavelengths less than 300nm, and an integration of 1 shutter cycle for wavelengths grater than 300nm. All data is normalised to a 1 cycle observ…

ul

Anonymous (anonymous@undisclosed.example.com) — 2026-05-27T16:56:10+00:00

UL MKIII/MKIV Lamp Scanning Routine The UL is a test command that results in a UV scan being performed with an external lamp to cover the range 290 - 325 nm. Only slit #1 is used and the NiSO4+UG11 filter (position 242) is used for the full range of the scan. Note that the UG11 filter (position 50) is used on a MKIII instead. The zenith prism is rotated to the UV dome, FW#2 is set to the 1 position, FW#1 is set to the 3 position, the iris is opened, and the tracker is rotated to the sun. The…

um

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T21:52:52+00:00

UM Umkehr Observations UM results in data being collected which can be processed to produce an Ozone vs. Height profile. Data is normally collected between solar zenith angles of 60 ° and 90° in the morning and in the afternoon. The zenith prism is pointed to a solar zenith angle of 0°, FW#1 is set to the 0 position, FW#2 is set to the 0 position, the iris is opened, and the Tracker is rotated CCW until it is perpendicular to the sun. Intensity measurements are made at two sets of wavelengt…

uq

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T17:29:29+00:00

UQ UVB Port Sun Measurement Routine created by Lars Opedal at the University of Oslo, Renewed by AD and FT This routine will take direct sun observations from signal directed into the Spectrophotometer through the UVB port.

uv

Anonymous (anonymous@undisclosed.example.com) — 2026-05-27T17:03:21+00:00

UV UV(B) Observation The UV routine measures the irradiance in the UV “B” region of the spectrum in steps of 0.5nm from 290nm to 325nm, and then back to 290 nm. The data is appended to a UVJJJYY.nnn data file. The zenith prism is rotated to the UV dome, FW#2 is set to the 1 position, FW#1 is set to the 3 position, the iris is opened, and the tracker is pointed toward the sun. When scanning is complete, a calculation of the UVB/UVA McKinley-Diffey weighted irradiance is computed, sent to the pr…

uvsum

Anonymous (anonymous@undisclosed.example.com) — 2021-11-26T20:33:02+00:00

UVSUM UV Data Summary This command initiates activity which processes and prints the daily summary of all UV measurements made during that day. DUV values are also calculated for each measurement and data is appended to the UVOAVG.nnn file. See Appendix A for an example of the UV average files.

ve

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T17:20:01+00:00

Velocity (VE) This command will only work for brewers with Single Board Electronics installed. This command resets micrometer motor velocity to mimic the motor speeds used within the multi-board electronics. These slower speeds will enhance reliability.

wait

Anonymous (anonymous@undisclosed.example.com) — 2020-12-29T16:18:55+00:00

W# W# is a wait command. Refer to the table below for the duration. CommandDurationW01 minW15 minW210 minW320 minW430 minWBPress UP sighting button or DEL key to continue

world_brewer_location

Anonymous (anonymous@undisclosed.example.com) — 2025-06-19T15:27:18+00:00

World Brewer Spectrophotometer Location Last Updated May 2025 - Michael Brohart Inst#ModelWMO IDCountryLocationLat (N)Long(W)ContactNotes001MKIV449GreeceAcademy of Athens37.992-23.775Kostas EleftheratosConverted from MKII (actually Br#027)005MKII261

x13d

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T17:00:33+00:00

X13D.COD Supplementary Code Supplementary Code written into the multi-board microprocessor memory on startup. This code adds a low level command “X”. This low level command can be used to move both micrometers in a MKIII together.

xl

Anonymous (anonymous@undisclosed.example.com) — 2026-05-27T17:09:08+00:00

XL MKIII/MKIV Extended Lamp Scanning Routine This routine scans an external lamp to cover the range 286.5 - 363 nm. On a MKIV, slit #1 is used up to 325 nm. On a MKIII, slit #1 is used up to 350 nm. FW#3 is switched from the NiSO4+UG11 position (242) to the open position (50) during the slit change on a MKIV. This is unnecessary on a MKIII. Also, FW#2 is switched (on a MKIV) to a higher neutral density filter position at 325 nm. The zenith prism is rotated to the UV dome, FW#2 is set to …

zb

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T13:04:24+00:00

ZB Zenith Sky Observations Similar to a ZS measurement, however a ZB observation would be optimized for consistent blue sky conditions.

zc

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T13:03:17+00:00

ZC Zenith Sky Observations Similar to a ZS measurement, however a ZC observation would be optimized for consistent cloudy conditions.

ze

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T02:12:59+00:00

ZE Zero Zenith Prism ZE positions the zenith prism to its zero-step position, or ZA=180°. The zenith reference is found, and the prism is then moved back a constant number of steps from the zero-step position.

zf

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T16:27:20+00:00

ZF MKII/MKIII/MKIV Filter wheels 1 and 2 zeroing This routine zeros both the Filter Wheel 1 and Filter Wheel 2 motors.

zi

Anonymous (anonymous@undisclosed.example.com) — 2023-12-13T14:16:54+00:00

This test looks at the relationship between the standard bulb intensity and the zenith motor steps. Once test is complete you can view the results in Report Pro by uploading the DI file. Maximum intensity should be found at step 0 or 1.

zl

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T16:22:30+00:00

ZL MKII/MKIII/MKIV Standard Zenith Lamp Test Routine This routine performs a standard lamp type test using an external UV lamp over the quartz window to check instrument stability similarly to an SL test.

zlsum

Anonymous (anonymous@undisclosed.example.com) — 2026-05-27T17:14:29+00:00

ZLSUM Zenith External Lamp Summary This routine outputs a summary list of zenith external lamp observations for the current day.

zp

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T13:11:49+00:00

ZP Perpendicular Zenith Sky Observations ZP is an (infrequently conducted) variation of the ZS command in which the Azimuth Tracker is rotated to an angle perpendicular to the sun. Instrument setup is similar to that for Umkehr observations. See ZS.

zs

Anonymous (anonymous@undisclosed.example.com) — 2021-11-25T21:08:19+00:00

ZS Zenith Sky Observations The zenith prism is pointed to a Zenith Angle of 0°, the iris is opened, FW#1 is set to position 0, FW#2 is set to position 2, and the azimuth tracker is pointed toward the sun. FW#2 is adjusted according to sky intensity. Data is recorded on disk and is printed as previously determined by PN, PD, and PF commands.

zsf

Anonymous (anonymous@undisclosed.example.com) — 2026-02-10T16:36:51+00:00

Zenith Sky Chart Coefficient Generation SOP for the Brewer Spectrometer Introduction The Brewer spectrophotometer utilizes two main methods for determining column ozone, direct sun (DS) and zenith sky (ZS). The DS measurements are processed using Beer’s Law however the ZS measurements are processed using an empirical parametric equation with 9 parameters. These parameters can be calculated using large data sets of near simultaneous DS and ZS measurements that were conducted over a wide range o…

zssum

Anonymous (anonymous@undisclosed.example.com) — 2023-10-30T18:47:38+00:00

ZSSUM Zenith Sky data Summary Prints out a daily zenith-data summary and calculates the daily mean of the good measurements.

zu

Anonymous (anonymous@undisclosed.example.com) — 2026-04-10T13:26:34+00:00

ZU MKII/MKIII/MKIV Automated Zenith Sky Measurement ZU is an (infrequently conducted) variation of the ZS command in which the Azimuth Tracker is rotated to an angle perpendicular to the sun. Instrument setup is similar to ZP observations but also using Umkher wavelengths.

zwsum

Anonymous (anonymous@undisclosed.example.com) — 2026-05-27T17:16:49+00:00

ZWSUM MKII/MKIII/MKIV NO2 Zenith Sky Data for Current Day This routine outputs morning or evening NO2 zenith sky data for the current day. It includes stratosphere and troposphere results. Nothing is printed if no data is available.