Jean-Michel Lemoine (CNES, France)

The satellite Sentinel-3B has just been added in the DORIS processing chain of the CNES/CLS Analysis Center. We will analyze the contribution of this satellite in the mutlisatellite solution. For Jason-2 and 3, we now use the body and solar array quaternions. We will look at the impact on the EOP product which was contaminated by the Jason draconitic signal. The DORIS scale factor and geocenter is the combination of each single DORIS satellite solutions. We also analyze the scale factor and geocenter of several single satellite solutions in order to improve the combined solution. Indeed, previous studies showed that single satellite solutions can have some large scale or geocenter values, such as the HY-2A scale. We have identified a high value for Tz translation for several satellites (Envisat, HY-2A and Sentinel-3A). We will resolve the different problems observed on scale and geocenter.