||= '''Exposure numbers''' =|| '''uses''' ||
|| 1 – 999      || Science and science calibration data
|| 1000 – 5999  || unused
|| 6000 – 6999  || Test exposures by the night staff
|| 7000 – 7099  || VIRUS Defocused (Spectral) Flat data (VDF/DSF)
|| 7100 – 7199  || VIRUS Alignment Characterization data (VAC)
|| 7200 – 7299  || Virus bias date test
|| 7300 – 7999  || Unused
|| 8000 – 8099  || PJM test data
|| 8100 – 8199  || JF day use
|| 8200 – 8299  || RB day use
|| 8300 – 9899  || unused
|| 9900 – 9999  || Afternoon RA OPS work
|| 10,000+      || unused 



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(last updated 23 May 2019)