Cristina Martin-Puig (EUMETSAT, Germany); Carolina Nogueira Loddo (EUMETSAT, Germany); Bruno Lucas (HE Space Operations, Germany); Salvatore Dinardo (HE Space Operations, Germany)

Sentinel-3 is part of a series of Sentinel satellites responsible for taking care of a continuous ‘health check’ of the Earth planet under the umbrella of the Copernicus program. The main objective of the Sentinel-3 mission is to monitor the marine environment. The Copernicus program will launch four Sentinel-3 satellites (from A to D) to achieve this goal from 2016 to 2022. At present, Sentinel-3A is operational and Sentinel-3B is being commissioned, flying in tandem, along the same ground track.

This work aims at presenting the commissioning results of Sentinel-3B in comparison with Sentinel-3A. This includes cross-comparisons of sea level, significant wave height, backscatter coefficients and wind speed; both their absolute value, relative drift, and performance.

The latest Sentinel-3A and B mutli-mission cross-calibration results are to be provided: quantification of cross-overs (mono- and multi-mission); multi-mission time series and collinear track analyses (including Jason-2, Jason-3, and SARAL/AltiKa).