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  2. Satellite - Wikipedia

    en.wikipedia.org/wiki/Satellite

    Space probes are satellites designed for robotic space exploration outside of Earth, and space stations are in essence crewed satellites. The first artificial satellite launched into the Earth's orbit was the Soviet Union's Sputnik 1, on October 4, 1957. As of December 31, 2022, there are 6,718 operational satellites in the Earth's orbit, of ...

  3. List of Earth observation satellites - Wikipedia

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

    NASA, Roscosmos, JAXA, ESA, and CSA. 1998. The International Space Station (ISS) has long been used as a central satellite platform for other sensors, including Earth observation sensors. For example: LIS, SAGE III, TSIS-I, ECOSTRESS, GEDI, OCO-3, Diwata-1, and HICO. Jason-3.

  4. Timeline of artificial satellites and space probes - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_artificial...

    This timeline of artificial satellites and space probes includes uncrewed spacecraft including technology demonstrators, observatories, lunar probes, and interplanetary probes. First satellites from each country are included. Not included are most Earth science satellites, commercial satellites or crewed missions.

  5. Satellite imagery - Wikipedia

    en.wikipedia.org/wiki/Satellite_imagery

    The first images from space were taken on the sub-orbital V-2 rocket flight launched by the US on October 24, 1946. Satellite image of Fortaleza.. Satellite images (also Earth observation imagery, spaceborne photography, or simply satellite photo) are images of Earth collected by imaging satellites operated by governments and businesses around the world.

  6. United States Space Surveillance Network - Wikipedia

    en.wikipedia.org/wiki/United_States_Space...

    The United States Space Surveillance Network (SSN) detects, tracks, catalogs and identifies artificial objects orbiting Earth, e.g. active/inactive satellites, spent rocket bodies, or fragmentation debris. The system is the responsibility of United States Space Command and operated by the United States Space Force and its functions are:

  7. Starlink - Wikipedia

    en.wikipedia.org/wiki/Starlink

    Status. Active since 2019 ; 5 years ago(2019) Starlink is a satellite internet constellation operated by Starlink Services, LLC, a wholly owned subsidiary of American aerospace company SpaceX, [ 3 ] providing coverage to over 100 countries and territories. It also aims to provide global mobile broadband.

  8. List of satellites in geosynchronous orbit - Wikipedia

    en.wikipedia.org/wiki/List_of_satellites_in...

    As of July 2023, the website UCS Satellite Database lists 6,718 known satellites. Of these, 580 are listed in the database as being at GEO. The website provides a spreadsheet containing details of all the satellites, which can be downloaded. Listings are from west to east (decreasing longitude in the Western Hemisphere and increasing longitude ...

  9. Global Positioning System - Wikipedia

    en.wikipedia.org/wiki/Global_Positioning_System

    The Global Positioning System (GPS), originally Navstar GPS, [ 2 ] is a satellite-based radio navigation system owned by the United States government and operated by the United States Space Force. [ 3 ] It is one of the global navigation satellite systems (GNSS) that provide geolocation and time information to a GPS receiver anywhere on or near ...

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