Copernicus Sentinel-1B anomaly (23 December 2021)

Microwave Toolbox
#1

Dear SNAP users,

This might be a bit off-snap topic, but I think it is important to anticipate questions.

This is a message from ESA, copy pasted from Open Access Hub

"Copernicus Sentinel-1B is unavailable since 23 December 2021 at 06:53 UTC, no data are being generated.

The resuming of the operations was carefully prepared including the on-board configuration changes preventing the anomaly to occur again.

However, during the preparation of the recovery operations, it became clear that the initial anomaly was a consequence of a potential serious problem related to a unit of the power system of the Sentinel-1B satellite. The operations performed over the last days did not allow to reactivate so far a power supply function required for the radar operations.

Further investigations to identify and remedy the root cause will be performed over the next days.

We apologize for the inconvenience caused to your activities. "

3 Likes
#2

Update: Open Access Hub

Copernicus Sentinel-1B anomaly (3rd update)

Following the previous news on the Sentinel-1B anomaly that occurred on 23 December 2021, further attempts to reactivate the proper functioning of the satellite power system’s affected unit were executed, but were not successful.

All necessary investigations to identify the root cause and possibly fix the issue are on-going.

The satellite remains under control, the thermal control system works properly and the regular orbit control manoeuvres are routinely performed.

We apologize for any inconvenience caused to your activities.

2 Likes