EDP Sciences
Gaia Data Release 2
Free Access

Fig. 8

image

Example common baseline fits for 4 out of the 90 devices plotted in Fig. 7: AF8 in row 6 (upper left); BP (upper right), and RP in row 3 (lower left), and RVS3 in row 5, strip 17 (lower right). In all cases red points show calibration data, blue points are outlying data rejected in the iterative linear least-squares fitting procedure, and the green line shows the fitted model. Gross outliers on the positive side are the result of hot columns on the CCDs and to prompt particle (radiation events) in their pixels, while marginal outliers on both positive and negative sides are on the non-Gaussian tails of the sample distribution.

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