CoAuthors

Jean-Michel Lemoine (CNES, France); Adrien Mezerette (CLS, France)

The satellites Jason-3 and Sentinel-3A were added in the DORIS processing chain of the CNES/CLS Analysis Center. A Precise Orbit Determination (POD) status for the two new missions is presented by showing statistical results such as one per revolution empirical acceleration amplitudes, orbit overlaps and orbit residuals. We give also some comparisons to the CNES precise orbit used for altimetry (GDR-E). The DORIS Ultra Stable Oscillators for these satellites are sensitive to the South Atlantic Anomaly (SAA) effect but not at the same level as Jason-1. So, for the POD, the SAA effect can be neglected but for the station position estimation it must be taken into account. Indeed, we show here the impact on the station position estimation for the stations in the SAA area by comparison of the single satellite solutions.