Fig. 1
Residuals between predicted and measured positions of the Gaia satellite. The astrometry has been calibrated with PPMXL (left panel) and Gaia DR1 (right panel). Each symbol corresponds to the average over a sequence of several frames over 30 min maximum (VST: filled symbols; LT: open symbols). Squares and circles indicate residuals in right ascension and declination respectively.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.