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Our pipeline is triggered by the ancillaries
SDS archive should always be in sync with SciHub
Failure to do so results in failure in processing pipeline
Advantage - At time of urgent response, we need not depend on uptime of external service as we have our own local metadata archive (GRQ acquisition index).
I presented the necessity of the Ancillary Ingest at ESIP Summer Meeting 2019. Here are the slides:
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