When looking at this link - https://docs.sentinel-hub.com/api/latest/data/sentinel-1-grd/examples/#s1grd-orthorectified-decibel-gamma0-vh-between--20-db-and-0-db-png
I can see examples of process API for Sentinel-1.
When I look at this example: S1GRD orthorectified linear gamma0 VV, ascending orbit direction, GeoTIFF in EPSG:32648 (UTM zone 48N)
I can see for example the property: “backCoeff”: “GAMMA0_ELLIPSOID”.
Is there any documentation where I can see which other options I can use for the property “backCoeff”? or any other property for that matter (e.g., orbitDirection or polarization )?