Fig. 2
Top: differential frequencies (observed minus computed). Predictions only take geometrical effects into account. Bottom: differential frequencies (observed minus computed). Predictions account for geometrical, instrumental (including clock offsets/rates with respect to the GPS time scale), and propagation effects. Epochs when RadioAstron’s transmitter was cooling are filtered out. Station colour codes used correspond to those from Fig. 1. Experiment GK047B, 2013.03.09-10.
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