Abstract's details

Precise Orbit Determination of DORIS satellites by CNES/CLS IDS Analysis Center in the frame of our contribution to the ITRF2020

Hugues Capdeville (CLS, France)

CoAuthors

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

Event: 2022 Ocean Surface Topography Science Team Meeting

Session: Precision Orbit Determination

Presentation type: Type Oral

We have processed all DORIS data available from 1993 to the end of 2020 for our contribution to the ITRF2020 realization. For that, we adopted the last standards and models recommended by IERS and IDS. We now use body and solar array quaternions for Jason-2 and Jason-3 satellites. We have just added the satellite Sentinel-6A to our processing chain.
A Precise Orbit Determination (POD) status for DORIS satellites by taking into account all these improvements will be presented. We will give statistical results such as one per revolution empirical acceleration amplitudes and orbit residuals. We will also give some comparisons to the CNES precise orbit used for altimetry and to GPS-only orbits contributing to the Copernicus POD Quality Working Group of Sentinel. Some external validations of our orbits will be done, such as with independent SLR measurements processing as well as through the use of altimeter crossovers. We will also look at the impact on the DORIS station position estimation.
 

Oral presentation show times:

Room Start Date End Date
Sala Pasinetti Tue, Nov 01 2022,11:30 Tue, Nov 01 2022,11:45
Hugues Capdeville
CLS
France
hcapdeville@groupcls.com