Filename                               Reason     Bkg         V      RCAM      TCAM   Sigma
20220621.172847.ucomp.1079.l1.3.fts         0    11.3      0.22       0.0       0.0    0.64
20220621.173118.ucomp.1079.l1.3.fts         0    11.3      0.21       0.0       0.0    0.64
20220621.175616.ucomp.1079.l1.3.fts         0    11.3      0.22       0.0       0.0    0.64
20220621.175847.ucomp.1079.l1.3.fts         0    11.3      0.23       0.0       0.0    0.64
20220621.182345.ucomp.1079.l1.3.fts         0    11.3      0.24       0.0       0.0    0.64
20220621.182616.ucomp.1079.l1.3.fts         0    11.3      0.26       0.0       0.0    0.64
20220621.203827.ucomp.1079.l1.3.fts         0    11.6      0.24       0.0       0.0    0.65
20220621.204058.ucomp.1079.l1.3.fts         0    11.6      0.24       0.0       0.0    0.65
20220621.213624.ucomp.1079.l1.3.fts        68    77.1      0.98       0.0       0.0    4.86
20220621.213856.ucomp.1079.l1.3.fts        64    31.0      0.45       0.0       0.0    2.04
20220621.220523.ucomp.1079.l1.3.fts         0    12.4      0.24       0.0       0.0    0.65
20220621.220754.ucomp.1079.l1.3.fts         0    12.6      0.24       0.0       0.0    0.65
20220622.001134.ucomp.1079.l1.3.fts         0    19.1      0.32       0.0       0.0    0.88
20220622.001405.ucomp.1079.l1.3.fts         0    14.4      0.33       0.0       0.0    0.92

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 (80.0)
   64   the difference of the image with the median is above threshold (1.5)

* indicates that the threshold values changed on the day