Sentinel 1 rolling archive of 1 year


#1

Hey Sentinel folks,

I see on your documentation that Sentinel 1 keeps the last 365 days of archive available in S3. However when we listed the bucket it showed records going back to 2014. Just confirming that Sentinel 1 keeps the last 1 year’s worth of data in S3. Thanks again


#2

Current commitment by AWS is to keep S-1 GRD data as a rolling archive for one year. However, at the moment there should be all data available distributed from beginning of May 2017. If there are some older products (probably just a few), they are probably due to some re-processing by ESA, which resulted in distribution in the last period.

We are currently investigating a possibility to keep full archive, but no decision was made yet.


#3

@gmilcinski Great info! Another question, when you remove data from S3 is there an event published?


#4

There is currently no SNS configured for removal of products. However, there is no removal happening either, at least not on an ongoing basis.
For S-2 we have once (and only once, I believe) deleted a bunch of erroneous products and have provided a list on this forum.


#5

@gmilcinski Okay to clarify, there hasn’t been a decision to keep the full archive, and starting in May 2018 you might start deleting data to maintain the 1 year rolling archive?


#6

No. For the moment there is no rolling policy in place and there is a high chance that full archive will be kept.