Periodically when we process newly released Sentinel-1 products we get the orbit file not available error.
Is there a way to check if the orbit file(s) for a particular product is available before we start processing the product?
I have tried to query ahead of time the available orbit files and note the
endingDateTime of the most recent orbit file. Then I only process Sentinel-1 products whose
endingDateTime is older than that.
The approach does not seem to work all the time.