Level-0 Raw Products - Sentinel-1 SAR Technical Guide - Sentinel Online
Level-0 Raw Products
Level-0 SAR products contain the raw SAR data from the unprocessed Instrument Source Packets (ISP).
Level-0 products are sub-divided into four product classes:
- SAR Level-0 standard products
- SAR Level-0 calibration products
- SAR Level-0 noise products
- SAR Level-0 annotation products.
Standard Level-0 products represent the stream of ISPs containing SAR echo, calibration or noise signal. Level-0 calibration products represent the calibration pulses as extracted from the SAR ISPs stream. Level-0 noise products represent the noise and noise-equivalent (or travelling) pulses as extracted from the SAR ISPs stream. Level-0 annotations products contain the primary and secondary headers extracted from the SAR ISPs stream.
Raw data products are generated from the SENTINEL-1 image modes:
- Stripmap Mode (SM)
- Interferometric Wide Swath Mode (IW)
- Extra Wide Swath mode (EW)
- Wave Mode (WV).
Raw data products are also generated from the SENTINEL-1 calibration modes:
- RF Characterisation Mode (RFC)
- Elevation Notch Acquisition Mode (EN)
- Azimuth Notch Acquisition Mode (AN).
Only the standard products from the SM, IW, and EW modes will be distributed by the PDGS.
Level-0 products may include data in single polarisation mode (HH or VV) or, for SM, IW and EW modes, they may include dual polarisation modes (HH+HV or VV+VH). For dual polarisation data, data for each polarisation are available in separate files within the Level-0 product.