SAR satellite data comes in various formats, called raw formats in the ROI_PAC world. Raw formats are essentially platform specific ways to package unfocused and focused SAR data. ROI_PAC uses various converters to transform these various platform specific formats into usable and more uniform files. The information used to write these converters has been scattered across the internet, but is collected here for anyone to peruse.
CEOS format sensors (ERS, ALOS, RadarSat1) CEOS.tar.gz
EnviSAT format EnviSAT.tar.gz
Cosmo-SkyMed and TerraSAR-X X-Band.tar.gz
RadarSat-2 Radarsat2.tar.gz
Sky Telemetry Format Sky.tar.gz