Sentinel-3B - GPS L2C tracking tests during commissioning phase

Jaime Fernández (GMV, Spain)

CoAuthors

Heike Peter (PosiTim UG, Germany); Pierre Féménias (ESA/ESRIN, Italy)

Event: 2018 Ocean Surface Topography Science Team Meeting

Session: Precision Orbit Determination

Presentation type: Type Oral

Sentinel-3B, the twin satellite of Sentinel-3A, has been launched on 25 April 2018. During commissioning phase the radar altimeter satellite will fly in tandem (30 sec apart) with Sentinel-3A. This is mainly done for calibration and validation of the SAR altimeter instrument.

The commissioning phase of Sentinel-3B and thus the tandem flight with Sentinel-3A will, however, also be used to do several tests with the RUAG GPS receivers on-board Sentinel-3B. Future missions like the Sentinel-C and –D satellites and the Jason-CS (Sentinel-6) satellite will carry the RUAG GNSS receiver as well. The receiver on Sentinel-3B already has the capability to track the GPS L2C signal, which will become in particular important for the future when the number of GPS satellites with L2C signal capability will be increased from currently 19 satellites up to the full GPS constellation. To test the receiver’s L2C tracking performance the redundant receiver on Sentinel-3B will run in parallel to the main receiver and with L2C tracking enabled, either exclusively or in a mixed L2P(Y)&L2C configuration.

The POD processing chain based on L2C data can be validated and a direct comparison to the results from the main receiver (running in nominal configuration) is possible. A performance comparison to Sentinel-3A, which is flying only 30 sec apart, can also be done.
 

Oral presentation show times:

Room Start Date End Date
Lagoa Das 7 Cidades Thu, Sep 27 2018,14:50 Thu, Sep 27 2018,15:05
Jaime Fernández
GMV
Spain
jfernandez@gmv.com