Earthdata Forum

Hi there,

Sentinel-1's recent launch of 1C has been said to "fully restore mission capabilities" which have been affected since the loss of 1B. I'm led to believe that this will mean that the two satellites operate in tandem on the same orbit path, 180 degrees apart to provide a new image every 5 days.

With this in mind - is it possible that your new burst IDs will combine data from both Sentinel-1A and Sentinel-1C in the future to allow us to generate more interferogram pairs easily? I've been trying to look at burst IDs for when both A and B were active but this still seems to be every 12 days. I've seen the following forum post from last year (viewtopic.php?t=4161) but wondering if we could have a follow-up about this too (is there/ will there be a KML-type reference map for identifying bursts?).

Please let me know if any of my assumptions are incorrect - thanks in advance!

Ben

Hello Ben,
The intention is that the Sentinel-1C satellite will assume the same orbit position as 1B had and, therefore, reestablish Sentinel-1 as a constellation mission. This means that the repeat frequency over most parts of the world will again be six days. As with 1B, observations (full frames and bursts) from 1C and 1A can be combined for interferometry, though there is concern that as the orbit control of 1A continues to deteriorate, frame drift may become a factor. Sentinel-1D will replace 1A and is currently scheduled to launch in June 2025.

The burst ID maps should remain unchanged.