TV-SAT 1

TV-SAT 1
NamesTVSAT-1
Mission typeCommunication
OperatorDeutsche Bundespost
COSPAR ID1987-095A Edit this at Wikidata
SATCAT no.18570
Websitehttps://www.telekom.com/en
Mission duration8 years (planned)
Failed on orbit
Spacecraft properties
Spacecraft typeSpacebus
BusSpacebus 300
ManufacturerEurosatellite (Aérospatiale) and
Messerschmitt-Bölkow-Blohm (MBB)
Launch mass2,144 kg (4,727 lb)
Dimensions2.4 x 1.64 x 6.4 m
Power4.5 kW
Start of mission
Launch date21 November 1987, 02:19:00 UTC
RocketAriane 2 (V20)
Launch siteCentre Spatial Guyanais, Kourou, ELA-2
ContractorArianespace
Entered serviceFailed on orbit
End of mission
DisposalGraveyard orbit
DeactivatedFebruary 1988
Orbital parameters
Reference systemGeocentric orbit[1]
RegimeGeostationary orbit
Longitude19.2° West
Transponders
Band5 Ku-Band[1]
Bandwidth27 MHz
Coverage areaEurope, Germany
TV-Sat constellation
 

TV-SAT 1 or TVSAT-1 was a West German communications satellite, which was to have been operated by Deutsche Bundespost. It was intended to provide television broadcast services to Europe, but it failed before entering service. It was built by Aérospatiale, was based on the Spacebus 300 satellite bus, and carried five Ku-band transponders. At launch it had a mass of 2,144 kg (4,727 lb), and an expected operational lifespan of eight years.[2]

Launch

TV-SAT 1 was launched by Arianespace using an Ariane 2 rocket flying from ELA-2 at Centre Spatial Guyanais, Kourou, French Guiana. The launch took place at 02:19:00 UTC on 21 November 1987.[3] It was the first Spacebus 300 satellite to be launched. Immediately after launch, one of its solar panels failed to deploy, so that the main uplink antenna, behind the solar panel, could not deploy either.[4] This failure was caused by the presence of two hold-down bolts,[1] which should have been removed before launch.[4]

Mission

Despite the failure, TV-SAT 1 was placed into a geostationary orbit at a longitude of 19.2° West.[2][1][5] It was briefly used for a series of tests to verify the satellite's systems, before it was retired to a graveyard orbit in February 1988.[4]

TV-Sat 2 followed on 8 August 1989.

See also

  • Spaceflight portal

References

  1. ^ a b c d "Tvsat 1". TSE. 28 February 2021. Retrieved 17 April 2021.
  2. ^ a b Krebs, Gunter (21 July 2019). "TV-Sat 1, 2". Gunter's Space Page. Retrieved 17 April 2021.
  3. ^ McDowell, Jonathan (14 March 2021). "Launch Log". Jonathan's Space Report. Retrieved 17 April 2021.
  4. ^ a b c Harland, David M; Lorenz, Ralph D. (2005). Space Systems Failures (2006 ed.). Chichester: Springer-Praxis. ISBN 0-387-21519-0.
  5. ^ Wade, Mark. "TVSAT". Encyclopedia Astronautica. Archived from the original on 29 August 2002. Retrieved 6 July 2009.
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Orbital launches in 1987
January
  • Meteor-2 No.17
  • Kosmos 1811
  • Kosmos 1812
  • Kosmos 1813
  • Progress 27
  • Kosmos 1814
  • Kosmos 1815
  • Molniya-3 No.42
  • Kosmos 1816
  • Kosmos 1817
February
March
  • Progress 28
  • Kosmos 1825
  • Kosmos 1826
  • Kosmos 1827, Kosmos 1828, Kosmos 1829, Kosmos 1830, Kosmos 1831, Kosmos 1832
  • Kosmos 1833
  • Gran' No.31L
  • Palapa B2P
  • SROSS-A
  • FLTSATCOM-6
  • Kvant-1
April
  • Kosmos 1834
  • Kosmos 1835
  • Kosmos 1836
  • Progress 29
  • Kosmos 1837
  • Kosmos 1838, Kosmos 1839, Kosmos 1840
  • Kosmos 1841
  • Kosmos 1842
May
  • Kosmos 1843
  • Gorizont No.23L
  • Kosmos 1844
  • Kosmos 1845
  • USA-22, LIPS-3, USA-23, USA-24, USA-25
  • Polyus
  • Progress 30
  • Kosmos 1846
  • Kosmos 1847
  • Kosmos 1848
June
  • Kosmos 1849
  • Kosmos 1850
  • Kosmos 1851
  • Kosmos 1852, Kosmos 1853, Kosmos 1854, Kosmos 1855, Kosmos 1856, Kosmos 1857, Kosmos 1858, Kosmos 1859
  • Resurs-F1 No.105
  • Kosmos 1860
  • USA-26
  • Kosmos 1861
July
  • Kosmos 1862
  • Kosmos 1863
  • Kosmos 1864
  • Kosmos 1865
  • Kosmos 1866
  • Kosmos 1867
  • Kosmos 1868
  • Kosmos 1869
  • Soyuz TM-3
  • Kosmos 1870
August
  • Kosmos 1871
  • Progress 31
  • Fanhui Shi Weixing 10
  • Meteor-2 No.21
  • Kosmos 1872
  • Kiku No.5
  • Kosmos 1873
September
  • Kosmos 1874
  • Ekran No.29L
  • Kosmos 1875, Kosmos 1876, Kosmos 1877, Kosmos 1878, Kosmos 1879, Kosmos 1880
  • Fanhui Shi Weixing I-01
  • Kosmos 1881
  • Kosmos 1882
  • Aussat A3, ECS-4
  • Kosmos 1883, Kosmos 1884, Kosmos 1885
  • Transit-O 27, Transit-O 29
  • Kosmos 1886
  • Progress 32
  • Kosmos 1887
October
  • Kosmos 1888
  • Kosmos 1889
  • Kosmos 1890
  • Kosmos 1891
  • Kosmos 1892
  • Kosmos 1893
  • USA-27
  • Kosmos 1894
November
  • Kosmos 1895
  • Kosmos 1896
  • Progress 33
  • TV-SAT 1
  • Kosmos 1897
  • USA-28
December
  • Kosmos 1898
  • Kosmos 1899
  • Gran' No.32L
  • Kosmos 1900
  • Kosmos 1901
  • Kosmos 1902
  • Soyuz TM-4
  • Kosmos 1903
  • Kosmos 1904
  • Kosmos 1905
  • Kosmos 1906
  • Ekran-M No.13L
  • Kosmos 1907
Launches are separated by dots ( • ), payloads by commas ( , ), multiple names for the same satellite by slashes ( / ). CubeSats are smaller.
Crewed flights are underlined. Launch failures are marked with the † sign. Payloads deployed from other spacecraft are (enclosed in parentheses).


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