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  2. Space-based solar power - Wikipedia

    en.wikipedia.org/wiki/Space-based_solar_power

    The solar power satellite was to be located in a geosynchronous orbit, 35,786 kilometres (22,236 mi) above the Earth's surface. NASA 1976. Between 1978 and 1986, the Congress authorized the Department of Energy (DoE) and NASA to jointly investigate the concept. They organized the Satellite Power System Concept Development and Evaluation Program.

  3. Polar (satellite) - Wikipedia

    en.wikipedia.org/wiki/Polar_(satellite)

    The Global Geospace Science (GGS) Polar satellite was a NASA science spacecraft designed to study the polar magnetosphere and aurorae. It was launched into orbit in February 1996, and continued operations until the program was terminated in April 2008. The spacecraft remains in orbit, though it is now inactive. Polar is the sister ship to GGS Wind.

  4. NOAA-20 - Wikipedia

    en.wikipedia.org/wiki/NOAA-20

    NOAA-20, designated JPSS-1 prior to launch, is the first of the United States National Oceanic and Atmospheric Administration's latest generation of U.S. polar-orbiting, non-geosynchronous, environmental satellites called the Joint Polar Satellite System.

  5. List of Earth observation satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_Earth_observation...

    Part of the Polar Operational Environmental Satellites (POES) program. NOAA-20: Active NASA and NOAA: 2017 Part of the Joint Polar Satellite System (JPSS) program. Oceansat-2: Active ISRO: 2009 OCO-2: Active NASA 2014 Orbiting Carbon Observatory 2. Part of the A-Train. The second precise carbon dioxide observing satellite after GOSAT. PACE ...

  6. Joint Polar Satellite System - Wikipedia

    en.wikipedia.org/wiki/Joint_Polar_Satellite_System

    The Joint Polar Satellite System (JPSS) is the latest generation of U.S. polar-orbiting, non-geosynchronous, environmental satellites. JPSS will provide the global environmental data used in numerical weather prediction models for forecasts, and scientific data used for climate monitoring.

  7. List of natural satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_natural_satellites

    Of the Solar System's eight planets and its nine most likely dwarf planets, six planets and seven dwarf planets are known to be orbited by at least 300 natural satellites, or moons. At least 19 of them are large enough to be gravitationally rounded; of these, all are covered by a crust of ice except for Earth's Moon and Jupiter's Io. [1]

  8. Polar orbit - Wikipedia

    en.wikipedia.org/wiki/Polar_orbit

    Polar orbits are used for Earth-mapping, reconnaissance satellites, as well as for some weather satellites. [2] The Iridium satellite constellation uses a polar orbit to provide telecommunications services. Near-polar orbiting satellites commonly choose a Sun-synchronous orbit, where each successive orbital pass occurs at the same local time of ...

  9. NOAA-21 - Wikipedia

    en.wikipedia.org/wiki/NOAA-21

    NOAA-21 ensures the continuity of satellite-based observations and products for NOAA's Polar-Orbiting Environmental Satellites (POES) and Suomi NPP systems. [4] The JPSS Ground System was maintained to support NOAA-21, following the model established for NOAA-20. The instruments on board include VIIRS, CrIS, ATMS, and OMPS.