Suomi NPP
The Suomi National Polar-orbiting Partnership satellite, launched October 28, 2011, is a joint nasa/noaa polar-orbiting weather and Earth-observation platform named for meteorologist Verner Suomi.
Suomi NPP hosts the Night Band sensor, the workhorse of global nighttime-lights monitoring. The platform inaugurated the operational VIIRS DNB capability that NOAA-20 and NOAA-21 have since extended.
Within this wiki, Suomi NPP appears as the originating platform for christopher-kyba’s 2014–2022 global VIIRS DNB analysis (src-terrestrial-technosignatures-satellites-2026-04), used to argue that Earth’s nighttime light emissions function as a working terrestrial-technosignature calibration for SETI/exoplanet direct-imaging.