Strategy to minimize the impact of the South Atlantic Anomaly effect on the Jason-3 and Sentinel-3A Precise Orbit Determination and on the station position estimation

Hugues Capdeville (CLS, France)

CoAuthors

Jean-Michel Lemoine (CNES, FRANCE)

Event: 2017 Ocean Surface Topography Science Team Meeting

Session: Precision Orbit Determination

Presentation type: Type Oral

All the Ultra Stable Oscillators (USO) of DORIS satellites are more or less sensitive to the South Atlantic Anomaly (SAA) effect. The last DORIS satellites are also impacted in particular Jason-3. While awaiting a DORIS data corrective model for the satellites Jason-3 and Sentinel-3A, we propose here a strategy to minimize the SAA effect on the Precise Orbit Determination (POD) and on the station position estimation. First, we will show the impact on the Jason-3 and Sentinel-3A POD by showing statistical results such as one per revolution empirical acceleration amplitudes, orbit overlaps and orbit residuals. Secondly, we will give some comparisons to the precise orbits of the CNES used for altimetry (GDR-E) and of the ESA/ESOC Analysis Center. We will also show the impact on the DORIS positions of the SAA stations.
 

Oral presentation show times:

RoomStart DateEnd Date
Symphony II Tue, Oct 24 2017,10:00 Tue, Oct 24 2017,10:15
Hugues Capdeville
CLS
France
hcapdeville@cls.fr