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Astra 1C

FieldValue
nameAstra 1C
image_size300px
mission_typeCommunications
operatorSES
COSPAR_ID1993-031A
SATCAT22653
websitehttps://www.ses.com/
mission_duration12 years (planned)
18 years (achieved)
spacecraft_typeBoeing 601
spacecraft_busHS-601
manufacturerHughes Space and Communications
launch_mass2790 kg
power3.5 kW
launch_date12 May 1993, 00:56:32 UTC
launch_rocketAriane 42L (V56)
launch_siteCentre Spatial Guyanais, ELA-2
launch_contractorArianespace
entered_serviceJuly 1993
disposal_typeGraveyard orbit
deactivated2015
orbit_referenceGeocentric orbit
orbit_regimeGeostationary orbit
orbit_longitudeAstra 19.2°E (1993-2006)
Astra 5°E (2007-2008)
2°E (2008-2011)
73°W (2014)
1.2°W (2014)
152°W (2014)
40°W (2014-2015)
apsisgee
trans_band18 (+6) Ku-band
trans_bandwidth26 MHz
trans_coverageEurope
programmeAstra constellation
previous_missionAstra 1B
next_missionAstra 1D

18 years (achieved) Astra 5°E (2007-2008) 2°E (2008-2011) 73°W (2014) 1.2°W (2014) 152°W (2014) 40°W (2014-2015)

Astra 1C was a geostationary communications satellite launched in 1993 by SES. The satellite remained in service until 2011 and is now derelict.

History

Astra 1C was the third communications satellite placed in orbit by SES, and was originally deployed at the Astra 19.2°E orbital position.

The satellite was intended to be replaced in 2002, along with Astra 1B, by Astra 1K but this satellite failed to reach its intended orbit. It was eventually relieved of its remaining television/radio payloads by Astra 1KR in 2006.

In November 2006, prior to the launch of Astra 1L to the 19.2° East position, Astra 1C was placed in an inclined orbit and moved first to 2.0° East for tests, and then in February 2007 to 4.6° East, notionally part of the Astra 5°E cluster of satellites but largely unused.

After November 2008, the satellite operated back at 2.0° East, in an inclined orbit. On 2 November 2011, the satellite was taken out of use as Eutelsat, the rightholder for the 3° allocation, came on air with Eutelsat 3A and current rules ask for a minimum of 2° separation. In the summer of 2014, the satellite was moved to 73° West, close to SES' AMC-6 satellite, to 1.2° West, to 152° West, and to 40° West next to SES-6. From January 2015, it was continuously moving west by approximately 5.2° per day.

References

References

  1. "ASTRA 1C". N2YO.com.
  2. [https://es.ses-astra.com/4026270/1C-footprint-fact-sheet.pdf Astra 1C fact sheet]
  3. (April 21, 2006). "ASTRA 1KR SATELLITE SUCCESSFULLY LAUNCHED". SES ASTRA.
  4. "Astra 1C factsheet". The Satellite Encyclopedia.
  5. [http://www.ses.com/fleet-coverage Astra 1C in SES fleet information] {{Webarchive. link. (2014-02-13 Accessed 3 June 2013)
  6. [http://www.n2yo.com/satellites/?c=34&srt=1&dir=1 Real Time Satellite Tracking And Predictions] Accessed August 2, 2014
  7. [http://www.n2yo.com/satellites/?c=34&srt=1&dir=1 Real Time Satellite Tracking And Predictions] Accessed 30 September 2014
  8. [http://www.n2yo.com/satellites/?c=34&srt=1&dir=1 Real Time Satellite Tracking And Predictions] Accessed 28 October 2014
  9. [http://www.n2yo.com/satellites/?c=34&srt=1&dir=1 Real Time Satellite Tracking And Predictions] Accessed 30 November 2014
  10. [http://www.n2yo.com/satellites/?c=34&srt=1&dir=1 Real Time Satellite Tracking And Predictions] Accessed 30 January 2015
Info: Wikipedia Source

This article was imported from Wikipedia and is available under the Creative Commons Attribution-ShareAlike 4.0 License. Content has been adapted to SurfDoc format. Original contributors can be found on the article history page.

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