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Loading contentThe U.S. agency operating the GOES geostationary and JPSS/POES polar weather satellites.
Satellites and constellations operated by NOAA that are modelled in this encyclopedia.
The first of NOAA's advanced GOES-R geostationary weather satellites, imaging the Western Hemisphere every few minutes for forecasting and storm tracking.
A radar-altimetry mission continuing the decades-long record of global sea-surface height for oceanography and climate monitoring.
The first satellite of NOAA's Joint Polar Satellite System, providing global polar-orbiting weather and environmental observations.
Facts on this topic will be cited from these primary and reference sources.
Public-domain solar-position geometry: sunrise, sunset, solar noon, twilight, declination, and the equation of time.
Public domain (US Government work).