The OMPS-NPP L1B NM Radiance EV Calibrated Geolocated Swath Orbital collection contains calibrated and geolocated radiances from 300 to 380 nm measured by the OMPS Nadir-Mapper sensor on the Suomi-NPP satellite.

Each granule contains data from the daylight portion of a single orbit (about 50 minutes). Spatial coverage is global (-90 to 90 degrees latitude), and there are about 14.5 orbits per day each with a swath width of 2600 km.