Advances in Geosciences
Advances in Geosciences
ADGEO
Articles | Volume 50
Articles | Volume 50
https://doi.org/10.5194/adgeo-50-87-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/adgeo-50-87-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 50
27 Mar 2020
 | 27 Mar 2020

Copernicus Sentinel-1 satellites: sensitivity of antenna offset estimation to orbit and observation modelling

Heike Peter, Jaime Fernández, and Pierre Féménias

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Short summary
The SAR Copernicus Sentinel-1 satellites require a high orbit accuracy of 5 cm in comparison to external processing facilities. Orbit analyses showed discrepancies between the results of the two Sentinel-1 satellites being identical in construction. Follow-up estimation of GPS antenna offsets shows the sensitivity to different orbit and observation models. Consistent results may be achieved for both satellites when applying estimated antenna offsets considering self-shadowing assumptions.
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