IOS Inc.
The Brewer experts
Important:
SETDATE: Automatic date correction in the OP_ST.### file before running the Brewer software. 
01.12.2005.
Calibration information tables. 09.12.2005.
How to find calibration information 25.01.2006.
Brewer operating software v3.76b 26.08.2008.
GWBasic: A help file. 12.12.2005.
Calibrations in 2018:
| Location | Country | Instruments | Month in 2018 | Julian days |
| Marambio | Antarctica | January | ||
| Belsk | Poland | May | ||
| Lindenberg | Germany | May | ||
| Sodankyla | Finland | May | ||
| Helsinki | Finland | June | ||
| Hohenpeissenberg | Germany | June | ||
| Valentia | Ireland | June | ||
| Taipei | Taiwan | July | ||
| Ny_Alesund | Spitzbergen | July | ||
| Norrkoping | Sweden | August | ||
| Alomar | Norway | August | ||
| Oslo | Norway | August | ||
| Ny_Alesund | Spitzbergen | November | ||
| Greenbelt-Goddard | USA | December |