Performance of the Sentinel-3 A and B GPS Receivers and associated GPS-Based Orbit Solutions

Aurore Sibois (Jet Propulsion Laboratory, California Institute of Technology, United States)

CoAuthors

Shailen D. Desai (Jet Propulsion Laboratory, California Institute of Technology, United States); Bruce J. Haines (Jet Propulsion Laboratory, California Institute of Technology, United States)

Event: 2019 Ocean Surface Topography Science Team Meeting

Session: Precision Orbit Determination

Presentation type: Type Poster

We present the latest results from our evaluation of the Global Positioning System (GPS) tracking data from the Sentinel-3 mission satellites, Sentinel-3A (S3A) and Sentinel-3B (S3B). For each spacecraft, we report tracking data statistics (e.g. typical GPS track duration, number of GPS satellites tracked) and discuss the in-flight calibration of the GPS antenna. The in-flight tracking performance of the S3A and S3B receivers is assessed through various internal (e.g. post-fit residuals, radial orbit precision as measured by overlaps of neighboring daily solutions) and external (e.g. sea surface height crossover variance and withheld satellite laser ranging residuals) metrics computed from our precise GPS-based orbit solutions. We also compare the performance of the GPS receivers on-board S3A and S3B with those of the higher-altitude Jason-2 (JA2) and Jason-3 (JA3) altimetry missions. S3A and S3B carry receivers manufactured by RUAG while JA2 and JA3 carry BlackJack and IGOR+ (BlackJack heritage) GPS receivers, respectively.

 

Poster show times:

Room Start Date End Date
The Gallery Tue, Oct 22 2019,16:15 Tue, Oct 22 2019,18:00
The Gallery Thu, Oct 24 2019,14:00 Thu, Oct 24 2019,15:45
Aurore Sibois
Jet Propulsion Laboratory, California Institute of Technology
United States
aurore.e.sibois@jpl.nasa.gov