Filename                               Reason     Bkg         V      RCAM      TCAM   Sigma
20220612.232402.ucomp.706.l1.3.fts          0    21.8      4.79       0.1       0.1    0.64
20220612.232634.ucomp.706.l1.3.fts          0    21.5      4.72       0.1       0.1    0.69
20220612.235234.ucomp.706.l1.3.fts          0    21.3      4.85       0.0       0.1    0.64
20220612.235505.ucomp.706.l1.3.fts          0    21.4      4.87       0.0       0.1    0.64
20220613.002010.ucomp.706.l1.3.fts          0    21.6      4.85       0.0       0.2    0.65
20220613.002241.ucomp.706.l1.3.fts          0    21.5      4.94       0.0       0.2    0.65
20220613.021315.ucomp.706.l1.3.fts          0    22.0      4.99       0.0       0.1    0.66
20220613.021546.ucomp.706.l1.3.fts          0    22.1      5.06       0.1       0.1    0.66
20220613.025621.ucomp.706.l1.3.fts          0    22.8      5.22       0.0       0.1    0.75
20220613.025852.ucomp.706.l1.3.fts          0    22.8      5.34       0.0       0.1    0.73
20220613.032348.ucomp.706.l1.3.fts          0    23.9      5.67       0.1       0.2    0.74
20220613.032619.ucomp.706.l1.3.fts          0    24.1      5.62       0.1       0.3    0.80
20220613.035117.ucomp.706.l1.3.fts          0    24.5      5.98       0.1       0.3    0.76
20220613.035348.ucomp.706.l1.3.fts          0    24.5      6.00       0.1       0.3    0.97
20220613.043413.ucomp.706.l1.3.fts         80    23.3     18.85       0.2       0.5    3.16

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