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  2. Comparison of free off-line satellite navigation software

    en.wikipedia.org/wiki/Comparison_of_free_off...

    Some of the free software mentioned here does not have detailed maps (or maps at all) or the ability to follow streets or type in street names (no geocoding). However, in many cases, it is also that which makes the program free (and sometimes open source [ 1 ] ), avoid the need of an Internet connection, [ 2 ] [ 3 ] [ 4 ] and make it very ...

  3. NOAA-20 - Wikipedia

    en.wikipedia.org/wiki/NOAA-20

    This visualization illustrates how JPSS-1 (now NOAA-20) orbit phasing and raising works relative to Suomi NPP, the notional way can be maneuvered a quarter-orbit along-track separation from NOAA-20 prior to launch of NOAA-21 (JPSS-2), and how a three-satellite constellation operates on a Sun-synchronous orbit node-crossing including sensor-swath footprints as the world turns below.

  4. Satellite ground track - Wikipedia

    en.wikipedia.org/wiki/Satellite_ground_track

    A satellite ground track may be thought of as a path along the Earth's surface that traces the movement of an imaginary line between the satellite and the center of the Earth. In other words, the ground track is the set of points at which the satellite will pass directly overhead, or cross the zenith, in the frame of reference of a ground observer.

  5. AOL

    search.aol.com

    The search engine that helps you find exactly what you're looking for. Find the most relevant information, video, images, and answers from all across the Web.

  6. List of satellite pass predictors - Wikipedia

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

    ISS SpaceX Satellite Tracking – tracks all Earth orbiting satellites while providing detailed location information for the users location, plus pass prediction listing. TrackSat - Satellite tracker – can track satellites orbiting the Earth in real time and predict their passes over your specific geolocation. Includes satellites such as ...

  7. ‘Like going to the moon’: Why this is the world’s most ...

    www.aol.com/going-moon-why-world-most-120326810.html

    They are in contact with headquarters with high level satellite antennae throughout the crossing, with both satellite and radio backup if needed — Devorsine says he can’t imagine ever losing ...

  8. Satellite geolocation - Wikipedia

    en.wikipedia.org/wiki/Satellite_geolocation

    In addition to geolocation with a time LOP and a frequency LOP, a location can also be determined by finding the crossing point of two time LOPs. The second time LOP is an identical measurement using a different secondary satellite, or using the same secondary satellite, but later in time.

  9. OpenStreetMap - Wikipedia

    en.wikipedia.org/wiki/OpenStreetMap

    OpenStreetMap was created by Steve Coast in response to the Ordnance Survey, the United Kingdom's national mapping agency, failing to release its data to the public under free licences in 2004. Initially, maps in OSM were created only via GPS traces , but it was quickly populated by importing public domain geographical data such as the U.S ...

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