Filename                               Reason     Bkg         V      RCAM      TCAM   Sigma
20221109.181500.ucomp.1079.l1.3.fts         0    10.1      0.57       0.0       0.0    0.85
20221109.181732.ucomp.1079.l1.3.fts         0    10.1      0.23       0.0       0.0    0.68
20221109.185311.ucomp.1079.l1.3.fts         0    10.2      0.26       0.0       0.0    0.68
20221109.185543.ucomp.1079.l1.3.fts         0    10.3      0.30       0.0       0.0    0.68
20221109.193122.ucomp.1079.l1.3.fts         0    10.2      0.87       0.0       0.0    0.68
20221109.193355.ucomp.1079.l1.3.fts         0    10.2      0.33       0.0       0.0    0.67
20221109.233417.ucomp.1079.l1.3.fts        80    13.8     53.36       0.0       0.0    1.62
20221110.015937.ucomp.1079.l1.3.fts         0    11.3      0.31       0.0       0.1    1.08
20221110.020209.ucomp.1079.l1.3.fts         0    11.3      0.89       0.0       0.0    1.08
20221110.024645.ucomp.1079.l1.3.fts        64    11.4      0.26       0.0       0.0    1.68
20221110.024917.ucomp.1079.l1.3.fts        64    11.2      0.21       0.0       0.0    1.84

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