Filename                               Reason     Bkg         V      RCAM      TCAM   Sigma
20221109.174326.ucomp.530.l1.3.fts         16   157.1    164.32    6261.4    4026.7     NaN
20221109.174831.ucomp.530.l1.3.fts         16   156.0    189.81    6298.9    3671.1     NaN
20221109.182127.ucomp.530.l1.3.fts         16   145.1    264.33    4177.7     848.2     NaN
20221109.182632.ucomp.530.l1.3.fts         16   143.5    129.95    3651.4     642.6     NaN
20221109.185939.ucomp.530.l1.3.fts         16   132.3    138.71    3140.9       1.4     NaN
20221109.190444.ucomp.530.l1.3.fts         16   130.9    132.79    3091.7       1.1     NaN
20221109.224849.ucomp.530.l1.3.fts         16   127.5    117.21    3522.9    1159.8     NaN
20221109.225354.ucomp.530.l1.3.fts         16   128.4    146.86    2574.0       1.0     NaN
20221110.012803.ucomp.530.l1.3.fts         16   125.1    143.56    4808.2    1296.3     NaN
20221110.013308.ucomp.530.l1.3.fts         16   124.2    176.23    4338.7    1468.5     NaN
20221110.020606.ucomp.530.l1.3.fts         16   121.8     90.23    4390.9    1867.5     NaN
20221110.021110.ucomp.530.l1.3.fts         16   121.0     89.83    5119.6    1512.5     NaN
20221110.025312.ucomp.530.l1.3.fts         16   109.2     83.16    5761.3    2031.2     NaN
20221110.025817.ucomp.530.l1.3.fts         16   106.5    133.53    5457.6    1820.6     NaN

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 (200.0)
    8   median background is below threshold (5.0)
   16   spurious Stokes V signal is above threshold (50.0)
   32   the chi-squared of the occulter fit is above threshold (300000.0)
   64   the difference of the image with the median is above threshold (4.0)

* indicates that the threshold values changed on the day