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Telstar 14
Mission typeCommunications
OperatorLoral Skynet (2004-07)
Telesat (2007-11)
COSPAR ID2004-001A
SATCAT no.28137
Mission duration15 years planned
Spacecraft properties
ManufacturerSpace Systems/Loral
Launch mass4,695 kilograms (10,351 lb)
Start of mission
Launch date11 January 2004, 04:12:59 (2004-01-11UTC04:12:59Z) UTC[1]
Launch siteOdyssey
ContractorSea Launch
End of mission
Deactivatedc. 2011 (2012)
Orbital parameters
Reference systemGeocentric
Longitude63° west
Perigee altitude36,193 kilometres (22,489 mi)
Apogee altitude36,207 kilometres (22,498 mi)
Inclination1.95 degrees
Period24.28 hours
Epoch28 October 2013, 15:53:21 UTC[2]

Telstar 14 or Estrela do Sul 1 (Southern Star 1) is a commercial communications satellite in the Telstar series built by Space Systems/Loral (SS/L) for Telesat to provide Ku-band communications to South America and the Southern United States. Estrela do Sul 1 was launched by Sea Launch using a Zenit-3SL carrier rocket on 11 Jan 2004 for geosynchronous orbit at 63 degrees west.

The North solar array failed to open after launch, limiting the mission effectiveness. The president of SS/L later said images of the satellite in orbit showed massive damage to the affected array, indicating that an explosion had occurred during launch.[3] The satellite entered service with reduced capacity (17 transponders) and reduced life span of 7 years with the jammed panel.[4]

Estrela do Sul 1 / Telstar 14 and Estrela do Sul 2 / Telstar 14R are built around the Loral 1300 satellite bus, and have launch mass of around 5000 kg.


The Telstar 14R replacement was launched in May 2011 from the Baikonur Cosmodrome in Kazakhstan aboard an International Launch Services Proton-M rocket. This replacement satellite, Telstar 14R experienced the same problem, with its north solar array failing to open. The Telstar 14R replacement satellite is in service, despite that deployment failure.[5]

See also


  1. ^ McDowell, Jonathan. "Launch Log". Jonathan's Space Page. Retrieved 30 October 2013.
  2. ^ "ESTRELA DU SOL-TELSTAR14 Satellite details 2004-001A NORAD 28137". N2YO. 28 October 2013. Retrieved 30 October 2013.
  3. ^ "Probe of IS-19 Solar Array Problem Focuses on Sea Launch Rocket". Space News. 7 June 2012.
  4. ^ "Estrela do Sol 1". Gunter's Space Page. Retrieved 2 June 2012.
  5. ^ de Selding, Peter B. (25 May 2011). "Balky Satellite Solar Panel Threatens Telesat's Growth Plans in S. America". Space News. Retrieved 2 June 2012.

External links

This page was last edited on 27 July 2018, at 06:39
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