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  2. Molniya orbit - Wikipedia

    en.wikipedia.org/wiki/Molniya_orbit

    The constellation of Molniya-orbiting satellites uses three satellites on different orbital planes, with apogees comparable to those of the geostationary satellites. A Molniya orbit (Russian: Молния , IPA: [ˈmolnʲɪjə] ⓘ , "Lightning") is a type of satellite orbit designed to provide communications and remote sensing coverage over ...

  3. Molniya (satellite) - Wikipedia

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

    Download as PDF; Printable version; ... (and the upgrade Molniya 1T) ... and the orbital period needed to be approximately half a sidereal day. These two factors ...

  4. List of orbits - Wikipedia

    en.wikipedia.org/wiki/List_of_orbits

    Molniya orbit: A semi-synchronous variation of a Tundra orbit. For Earth this means an orbital period of just under 12 hours. Such a satellite spends most of its time over two designated areas of the planet. An inclination of 63.4° is normally used to keep the perigee shift small. [15]

  5. Highly elliptical orbit - Wikipedia

    en.wikipedia.org/wiki/Highly_elliptical_orbit

    A highly elliptical orbit (HEO) is an elliptic orbit with high eccentricity, usually referring to one around Earth.Examples of inclined HEO orbits include Molniya orbits, named after the Molniya Soviet communication satellites which used them, and Tundra orbits.

  6. File:Molniya.jpg - Wikipedia

    en.wikipedia.org/wiki/File:Molniya.jpg

    Molniya.jpg (610 × 299 pixels, file size: 216 KB, MIME type: image/jpeg) This is a file from the Wikimedia Commons . Information from its description page there is shown below.

  7. Longitude of the ascending node - Wikipedia

    en.wikipedia.org/wiki/Longitude_of_the_ascending...

    The longitude of the ascending node, also known as the right ascension of the ascending node, is one of the orbital elements used to specify the orbit of an object in space. Denoted with the symbol Ω , it is the angle from a specified reference direction, called the origin of longitude , to the direction of the ascending node (☊), as ...

  8. Meridian (satellite) - Wikipedia

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

    Meridian (Russian: Меридиан) is a family of telecommunications satellites for civil and military use developed by Russia in the 2000s, placed in a Molniya Orbit, and intended to replace the two last series of Molniya satellites still in activity, as well as the old Parus satellites. The first launch took place on 24 December 2006 ...

  9. File:NASA molniya oblique.png - Wikipedia

    en.wikipedia.org/wiki/File:NASA_molniya_oblique.png

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