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Thaicom 5

Thai satellite

Thai satellite

FieldValue
nameTHAICOM 5
mission_typeCommunication
operatorThaicom
COSPAR_ID2006-020B
SATCAT29163
mission_duration12 years (planned)
spacecraft_busSpacebus 3000A
manufacturerAlcatel Alenia Space
launch_mass2800 kg
launch_dateUTC
launch_rocketAriane 5ECA
launch_siteKourou ELA-3
launch_contractorArianespace
disposal_typeDecommissioned
deactivatedUTC
orbit_epoch27 May 2006, 17:09:00 UTC
orbit_referenceGeocentric
orbit_regimeGeostationary
now graveyard orbit
orbit_periapsis35777 km
orbit_apoapsis35796 km
orbit_inclination0 degrees
orbit_period24 hours
orbit_longitude78.5° East
apsisgee
trans_band25 C band
14

now graveyard orbit

14

Thaicom 5 was a geostationary communications satellite operated by Thaicom. It was used to provide communications services to Asia, Africa, Middle East, Americas, Europe and Australia.

Overview

Thaicom 5 was constructed by Alcatel Alenia Space, and is based on the Spacebus 3000A satellite bus, with a configuration identical to the Thaicom 3 satellite which it replaced. It was originally ordered as Thaicom 4, but sold to Agrani as Agrani 2 before completion. It was completed in 1997, and stored until June 2005 when it was cancelled and sold back to Thaicom. It was equipped with 25 G/H band (IEEE C band) and 14 J band (IEEE Ku band) transponders, and at launch it had a mass of 2800 kg, with an expected operational lifespan of 12 years.

Thaicom 5 began experiencing technical difficulties in December 2019, causing Thaicom to duplicate some channels, including Korean Central Television, to neighboring satellites.

Launch

The satellite was launched on an Ariane 5ECA carrier rocket, contracted by Arianespace, flying from ELA-3 at the Guiana Space Centre. The launch occurred at 21:09 UTC on 27 May 2006, and placed Thaicom 5, along with the Mexican Satmex 6 spacecraft, into geosynchronous transfer orbit. At the time, it was the heaviest dual-satellite payload ever launched into geosynchronous transfer orbit, however, this record has since been broken.

Following launch, Thaicom 5 raised itself into geostationary orbit using an S400 engine, with insertion occurring on 3 June 2006. It underwent on-orbit testing, and was positioned at a longitude of 78.5° East for operational service, where it replaced the failing Thaicom 3 satellite. On 2 October 2006, after Thaicom 5 had become operational, Thaicom 3 was moved to a graveyard orbit.

References

References

  1. (27 February 2020). "Thaicom 5 Satellite Ends Service". Thaicom.
  2. "NASA - NSSDCA - Spacecraft - Trajectory Details".
  3. "THAICOM 5". Thaicom Public Company Limited.
  4. (2009-07-01). "UCS Satellite Database". Union of Concerned Scientists.
  5. Krebs, Gunter. "THAICOM 3, 5". Gunter's Space Page.
  6. Williams, Martyn. (February 5, 2020). "KCTV appears on Chinese satellite".
  7. McDowell, Jonathan. "Launch Log". Jonathan's Space Page.
  8. (2006-05-27). "Launch Webcast". Arianespace.
  9. McDowell, Jonathan. "Index". Jonathan's Space Page.
Info: Wikipedia Source

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