S Files: SJJJYY.nnn - ‘S’, or Summary files contain summary information from each test and
measurement contained within the B file for the same day
The data contained in the S file is essentially the same as the “summary” line of the B file.
SJJJYY.nnn files start with a “tc” and the 5 temperature coefficients which were in the instruments
constants file when the SUM command was issued. The SUM command is normally performed as
the first command in the ED end of day sequence. Each item in a S-file is separated with a carriage
return and line feed, the end of the summary file is marked with “ef”.
UV Files UVJJJYY.nnn - ‘UV’ files contain data data from UV scans, Including UV, UX, and UA
In UX scans, lines 15 to 18 are repeated for wavelengths 286.5nm to 363.0nm in 0.5nm
increments. In UV measurements the scan is from 290.0nm to 325.0nm then back to 290.0nm in
0.5nm increments and the number of cycles is 4 and counts for 4 cycles are recorded in the UV file.
Umkehr Files: UJJJYY.nnn -- As part of the End-of-Day process the Umkehr data in the B file is
transferred into a U file which contains both morning and evening data if it has been collected.
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