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  2. List of communications satellite firsts - Wikipedia

    en.wikipedia.org/wiki/List_of_communications...

    United States: ACTS Gigabit Satellite Network: First communication satellite network to operate in the 20-30 GHz frequency band: September 12, 1993 United States: Iridium 1: First satellite for satellite telephone service: May 5, 1997 United States: AO-40: First satellite to use GPS for navigation and attitude determination in High Earth orbit ...

  3. Explorer 1 - Wikipedia

    en.wikipedia.org/wiki/Explorer_1

    Explorer 1 was the first satellite launched by the United States in 1958 and was part of the U.S. participation in the International Geophysical Year (IGY). The mission followed the first two satellites, both launched by the Soviet Union during the previous year, Sputnik 1 and Sputnik 2. This began a Space Race during the Cold War between the ...

  4. List of Philippine satellites - Wikipedia

    en.wikipedia.org/wiki/List_of_Philippine_satellites

    The first Philippine satellites were operated by private companies. The first Filipino-owned satellite is Agila-1, a satellite acquired in 1996 by Mabuhay Satellite Corporation from PT Pasifik Satelit Nusantara, an Indonesian company. The first Philippine satellite launched to space was Agila-2 which was placed to orbit in 1997.

  5. SCORE (satellite) - Wikipedia

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

    The message recorded of Eisenhower.. SCORE (Signal Communications by Orbiting Relay Equipment) was the world's first purpose-built communications satellite.Launched aboard an American Atlas rocket on December 18, 1958, SCORE provided the second test of a communications relay system in space (the first having been provided by the USAF/NASA's Pioneer 1), [3] the first broadcast of a human voice ...

  6. List of first satellites by country - Wikipedia

    en.wikipedia.org/wiki/List_of_first_satellites...

    Launched on the same rocket as the first Omani satellite Armenia: Hayasat-1: Bazoomq Space Research Laboratory: Bazoomq Space Research Laboratory, Center of Scientific Innovation and Education Falcon 9: Vandenberg SLC-4E: 1 December 2023 Formerly part of the Soviet Union. Launched on the same rocket as the first Irish satellite Ireland: EIRSAT-1

  7. Timeline of first Earth observation satellites - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_first_Earth...

    Sputnik 1, while the first satellite ever launched, did not conduct Earth science. Explorer 1 was the first satellite to make an Earth science discovery when it found the Van Allen belts . This list is incomplete ; you can help by adding missing items .

  8. Satcom (satellite) - Wikipedia

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

    The first Satcom satellite, Satcom 1, was launched on 13 December 1975. The last satellite, Satcom K2, was placed into orbit on 27 November 1985 and was de-orbited in February 2002. Satcom was first superseded and then replaced by the GE series of satellites. The Satcom system passed to General Electric with its purchase of RCA in 1986.

  9. Relay program - Wikipedia

    en.wikipedia.org/wiki/Relay_program

    Relay 1 was the first satellite to broadcast television from the United States to Japan. The first broadcast during orbit 2677 (1963-11-22, 2027:42-2048 (GMT), or 1:27 pm Dallas time) was to be a prerecorded address from the president of the United States to the Japanese people, but was instead the announcement of the John F. Kennedy ...

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