Filename                               Reason     Bkg         V      RCAM      TCAM   Sigma
20220621.171258.ucomp.706.l1.3.fts          0    21.2      5.45       0.1       0.6    0.67
20220621.171529.ucomp.706.l1.3.fts          0    21.0      5.48       0.1       0.6    0.77
20220621.174029.ucomp.706.l1.3.fts          0    20.6      5.41       0.1       0.2    0.66
20220621.174300.ucomp.706.l1.3.fts          0    20.5      5.43       0.1       0.2    0.72
20220621.180757.ucomp.706.l1.3.fts          0    20.2      5.41       0.1       0.3    0.65
20220621.181028.ucomp.706.l1.3.fts          0    20.2      5.35       0.1       0.3    0.66
20220621.202240.ucomp.706.l1.3.fts          0    20.2      5.60       0.1       0.2    0.67
20220621.202511.ucomp.706.l1.3.fts          0    20.2      5.59       0.1       0.2    0.67
20220621.212306.ucomp.706.l1.3.fts          0    23.5      5.78       0.1       0.2    0.70
20220621.214805.ucomp.706.l1.3.fts          0    23.8      5.81       0.1       0.1    0.77
20220621.215036.ucomp.706.l1.3.fts          0    22.8      5.80       0.1       0.2    0.68
20220622.023759.ucomp.706.l1.3.fts         64    28.8      5.99       0.1       0.3    1.53
20220622.024031.ucomp.706.l1.3.fts          0    34.1      6.02       0.0       0.1    1.38

GBU bitmask codes
Code    Description
    1   spar guide control loop is below threshold (0.99)
    2   spar guider intensity below threshold (0.9 * 9.256 * exp(-0.05 * secz))
    4   median background is above threshold (35.0)
    8   median background is below threshold (5.0)
   16   spurious Stokes V signal is above threshold (8.0)
   32   the chi-squared of the occulter fit is above threshold (800.0)
   64   the difference of the image with the median is above threshold (1.5)

* indicates that the threshold values changed on the day