Copernicus Sentinel-1 satellites: sensitivity of antenna offset estimation to orbit and observation modelling
The SAR (Synthetic Aperture Radar) Copernicus Sentinel-1 satellites require a high orbit accuracy of 5 cm WHITE QUINOA in 3D in comparison to external processing facilities.The official orbit products delivered by the Copernicus POD (Precise Orbit Determination) Service fulfil this requirement.Nevertheless, analyses have shown discrepancies