DN to Reflectance
Reflective band DN’s are converted to TOA reflectance using the rescaling coefficients in the acquisition metadata file:
\(R(b)\) is the Top of Atmosphere planetary reflectance
\(reflectanceCoefficient_b\) the reflectance coefficient found in the product metadata, one value per band
The input is an ingested Planet-Scope, see details here.
The output is a STAC item geojson ... including the assets ...