Copernicus POD Service - Model updates and validation of Sentinel-3 orbit determination

Heike Peter (PosiTim, Germany)

CoAuthors

Emilio J. Calero (GMV AD, Spain); Jaime Fernández (GMV AD, Spain); Pierre Féménias (ESA/ESRIN, Italy)

Event: 2019 Ocean Surface Topography Science Team Meeting

Session: Precision Orbit Determination

Presentation type: Type Oral

The Copernicus POD (Precise Orbit Determination) Service operationally generates precise orbital products for the Copernicus Sentinel-1, -2, and -3 missions. Model updates are necessary from time to time to follow up latest model developments. Validation of such updates is important to continuously guarantee the quality of the orbit products. Model updates do also have an impact on the long-term stability of the products, which has to be monitored as well.
The impact of the switch to EIGEN-GRGS RL04 gravity field model, GFZ AOD1B product, and FES2014 ocean tide model is investigated for the orbit products of the altimeter satellites Sentinel-3A and -3B. Comparisons to operational Sentinel-3 orbits from CNES, CPOD, and to post-processed orbits from other groups as well as SLR measurements are used for validation. For the long-term validation a reprocessed time series based on the new models is generated as well.

 

Oral presentation show times:

Room Start Date End Date
The Monroe Hub Tue, Oct 22 2019,09:45 Tue, Oct 22 2019,10:00
Heike Peter
PosiTim
Germany
heike.peter@positim.com