User Guides - Sentinel-3 OLCI - Spatial Resolution - Sentinel Online
Full Resolution (FR)
To simplify OLCI operations, maximise instrument autonomy and offer maximum flexibility for data processing and re-analysis, OLCI always operates (both land and ocean) in FR mode.
For the nominal orbit, at sub-satellite point, OLCI Full Resolution is approximately 300 m on ground.
Reduced Resolution (RR)
From Level-1B, OLCI products are provided in a sub-sampled version, referred to as RR.
RR is obtained by averaging the signal of a grid of 16 FR pixels (4 Along Track x 4 Across Track).
For the nominal orbit, at sub-satellite point, OLCI Reduced Resolution is approximately 1.2 km on ground.