Gaia Data Release 1
Open Access

Fig. A.1


Evolution of selected calibration parameters estimated in the primary solution. Time is expressed in revolutions of the onboard mission timeline (OBMT; Sect. 3.1). Vertical grey lines indicate the breakpoints tj of the calibration model. Top: basic-angle offset, Eq. (A.5), with a zoom to the final ~100 revolutions. Bottom: parameter , representing a small rotation of the CCD in its own plane, for the nine CCDs in row 3. Colours violet to brown are used for AF1 to AF9 (see Fig. 1), respectively.

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