Unit-weight standard deviation of the large-scale calibration as a function of time (in satellite revolutions) for an example calibration unit. In this case, AF6, Row 1, Window Class 1, No Gate. This is the same as shown in Evans et al. (2017) for Gaia DR1. The black lines are for the preceding and red for the following FoV calibration units. The vertical lines represent significant satellite events: scanning law change (magenta), decontamination (green), and refocussing (blue). The approximate time range covered by this plot is July 2014 to May 2016.
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