Operator
European Commission (EC)Manufacturer
European Commission (EC)Sentinel 1B
4/25/2016
Airbus Defence and Space provided the C-band synthetic aperture radar instrument for Sentinel-1B.
ESA is considering moving up the launch of the new SAR satellite, Sentinel-1C, in response to the potential loss of Sentinel-1B.
The European Space Agency is continuing efforts to recover the Sentinel-1B radar imaging satellite that malfunctioned in December 2022.
As of February 25, 2023, ESA has not yet identified a root cause for the anomaly affecting the main and backup power systems of Sentinel-1B's SAR payload.
Sentinel-1C will round out the initial capacity offered by Sentinel-1A and Sentinel-1B to provide radar-based environmental and security monitoring.
Sentinel-1C will round out the initial capacity offered by Sentinel-1A and Sentinel-1B to provide environmental and security monitoring via spaceborne radar systems.
The investigation concluded that two 28-volt power regulators for the Sentinel-1B SAR payload malfunctioned and that one regulator is needed to operate the payload.
Sentinel-1B’s synthetic aperture radar (SAR) payload malfunctioned in December 2021.
One of the two 28-volt power regulators is needed to operate the Sentinel-1B SAR payload.
The anomaly on Sentinel-1B involved the impossibility of recovering the 28V regulated bus of the satellite’s C-band SAR antenna power supply unit, which is needed to provide power to the radar electronics.