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  2. List of satellite pass predictors - Wikipedia

    en.wikipedia.org/wiki/List_of_satellite_pass...

    N2YO provides real time tracking and pass predictions with orbital paths and footprints overlaid on Google Maps. [6] It features an alerting system that automatically notifies users via SMS and/or email before International Space Station crosses the local sky. The N2YO.com system powers ESA's, Space.com's and many other's satellite tracking web ...

  3. 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 ...

  4. Joint Polar Satellite System - Wikipedia

    en.wikipedia.org/wiki/Joint_Polar_Satellite_System

    The Suomi National Polar-orbiting Partnership , previously known as the National Polar-orbiting Operational Environmental Satellite System Preparatory Project and NPP-Bridge, has a nearly identical design as NOAA-20 and shares some ground systems with it but it was not designed as a part of JPSS. It was originally proposed as a proof-of-concept ...

  5. Satellite ground track - Wikipedia

    en.wikipedia.org/wiki/Satellite_ground_track

    A satellite with an orbital inclination between 90° and 180° (or, equivalently, between 0° and −90°) is said to be in a retrograde orbit. [note 2] A satellite in a direct orbit with an orbital period less than one day will tend to move from west to east along its ground track. This is called "apparent direct" motion.

  6. 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 ...

  7. Azimuthal equidistant projection - Wikipedia

    en.wikipedia.org/wiki/Azimuthal_equidistant...

    If the azimuthal equidistant projection map is centered about a point whose antipodal point lies on land and the map is extended to the maximum distance of 20,000 km (12,427 mi) the antipode point smears into a large circle. This is shown in the example of two maps centered about Los Angeles, and Taipei.

  8. List of rocket launch sites - Wikipedia

    en.wikipedia.org/wiki/List_of_rocket_launch_sites

    Vandenberg Space Force Base, California 34°46′19″N 120°36′04″W  /  34.77204°N 120.60124°W  / 34.77204; -120.60124  ( Vandenberg 1958–

  9. Polar Operational Environmental Satellites - Wikipedia

    en.wikipedia.org/wiki/Polar_Operational...

    The Polar-orbiting Operational Environmental Satellite (POES) is a constellation of polar orbiting weather satellites funded by the National Oceanic and Atmospheric Administration (NOAA) and the European Organisation for the Exploitation of Meteorological Satellites (EUMETSAT) with the intent of improving the accuracy and detail of weather analysis and forecasting. [1]