Sentinel-1 data are available from ESA from a Rolling Archive that delivers data within 24 hours of acquisition and maintains recent months of data. Registration is required, and terms & conditions apply.
ASF maintains a complete archive of processed Sentinel-1 data, available within three days of acquisition. Registration is required, and terms & conditions apply. Data feeds are available.
2. How to Download Sentinel-1 Data from ASF: Vertex (preferred), API, or Earthdata
The Get Started guide offers additional information on accessing data from ASF.
Search results for Sentinel granules are bundled, so regardless of the processing level of the original search granule (RAW, SLC, GRD or OCN), all other related granules are shown as well. The search result list for any selected granule includes the ground range detected (GRD) product, because the associated GRD browse image, when available, provides the user with the most accurate information about the data coverage.
The Precise Orbit Determination (POD) service for SENTINEL-1 provides Restituted orbit files and Precise Orbit Ephemerides (POE) orbit files. POE files cover approximately 28 hours and contain orbit state vectors at fixed time steps of 10-second intervals. Files are generated one file per day and are delivered within 20 days after data acquisition.
Users of these vectors may want to refer to the Sentinels POD Service File Format Specifications available on the Documents & Tools page.