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NigComSat-1

NigComSat-1 was a Nigerian communication satellite. The initial contract to build the satellite was signed in 2004. It was launched in China by Nasrda and became the third African geosynchronous communication satellite, when it was launched at 16:01 UTC on 13 May 2007, aboard a Chinese Long March 3B carrier rocket, from the Xichang Satellite Launch Centre in China. The spacecraft was operated by Nigerian Communications Satellite Ltd (NIGCOMSAT). On November 11, 2008, NigComSat-1 failed in orbit after running out of power due to an anomaly in its solar array.

NigComSat-1
Mission typeCommunication
OperatorNIGCOMSAT
COSPAR ID2007-018A
SATCAT no.31395
Mission durationPlanned: 15 years
Achieved: 18 months
Spacecraft properties
BusDFH-4
ManufacturerCGWIC
Launch mass5,150 kilograms (11,350 lb)
Start of mission
Launch date13 May 2007, 16:01 (2007-05-13UTC16:01Z) UTC
RocketLong March 3B
Launch siteXichang
End of mission
DisposalFailed
Last contact11 November 2008 (2008-11-12)
Orbital parameters
Reference systemGeocentric
RegimeGeostationary
Longitude42.5° East[1]
Perigee altitude35,782 kilometres (22,234 mi)[1]
Apogee altitude35,789 kilometres (22,238 mi)[1]
Inclination0.1 degrees[1]
Period24 hours
 

Launch edit

The satellite, which is the third Nigerian satellite to be placed into orbit, was launched into a geosynchronous transfer orbit and subsequently it was successfully inserted into a geosynchronous orbit, positioned at 42.5oE. It had a launch mass of 5,150 kg, and had an expected service life of 15 years.

Specifications edit

It was based on the Chinese DFH-4 satellite bus, and carries a variety of transponders:

Its design was to provide coverage to many parts of Africa on C-band and Ku-band, a global navigation beam on L-band and the Ka-band transponders with spot beams over Nigeria, South Africa and Europe.

China's satellite export business edit

NigcomSat-1 represented a milestone for China's satellite export business. For the first time the China Great Wall Industry Corporation provided all aspects of in-orbit delivery of a satellite to an international customer. This included satellite manufacture, launch services, ground station construction, project financing, insurance and training.[2]

Failure and replacement edit

On 10 November 2008 (0900 UTC), the satellite was reportedly switched off for analysis and to avoid a possible collision with other satellites. According to Nigerian Communications Satellite Limited, it was put into "emergency mode operation in order to effect mitigation and repairs".[3] The satellite eventually failed after losing power on 11 November 2008.

On March 24, 2009, the Nigerian Federal Ministry of Science and Technology, NigComSat Ltd. and CGWIC signed a further contract for the in-orbit delivery of the NigComSat-1R satellite. NigComSat-1R also uses the DFH-4 satellite platform with improvements over the previous satellite, and was delivered in the fourth quarter of 2011 as a replacement for the failed NigComSat-1. It was successfully launched on December 19, 2011.[4]

References edit

  1. ^ a b c d Encyclopedia Astronautica - CZ-3B 2008-03-19 at the Wayback Machine
  2. ^ "CGWIC News". CGWIC.
  3. ^ . AFP. 2008-11-12. Archived from the original on 2011-01-04.
  4. ^ "Nigcomsat-1 Program --- In-Orbit Delivery Program --- Communications Satellite --- CGWIC". www.cgwic.com. Retrieved 2020-08-11.

External links edit

  • NigComSat Ltd. 2010-07-26 at the Wayback Machine
  • Gunter's Space Page - NigComSat-1
  • Sat Index

nigcomsat, nigerian, communication, satellite, initial, contract, build, satellite, signed, 2004, launched, china, nasrda, became, third, african, geosynchronous, communication, satellite, when, launched, 2007, aboard, chinese, long, march, carrier, rocket, fr. NigComSat 1 was a Nigerian communication satellite The initial contract to build the satellite was signed in 2004 It was launched in China by Nasrda and became the third African geosynchronous communication satellite when it was launched at 16 01 UTC on 13 May 2007 aboard a Chinese Long March 3B carrier rocket from the Xichang Satellite Launch Centre in China The spacecraft was operated by Nigerian Communications Satellite Ltd NIGCOMSAT On November 11 2008 NigComSat 1 failed in orbit after running out of power due to an anomaly in its solar array NigComSat 1Mission typeCommunicationOperatorNIGCOMSATCOSPAR ID2007 018ASATCAT no 31395Mission durationPlanned 15 yearsAchieved 18 monthsSpacecraft propertiesBusDFH 4ManufacturerCGWICLaunch mass5 150 kilograms 11 350 lb Start of missionLaunch date13 May 2007 16 01 2007 05 13UTC16 01Z UTCRocketLong March 3BLaunch siteXichangEnd of missionDisposalFailedLast contact11 November 2008 2008 11 12 Orbital parametersReference systemGeocentricRegimeGeostationaryLongitude42 5 East 1 Perigee altitude35 782 kilometres 22 234 mi 1 Apogee altitude35 789 kilometres 22 238 mi 1 Inclination0 1 degrees 1 Period24 hours Contents 1 Launch 2 Specifications 3 China s satellite export business 4 Failure and replacement 5 References 6 External linksLaunch editThe satellite which is the third Nigerian satellite to be placed into orbit was launched into a geosynchronous transfer orbit and subsequently it was successfully inserted into a geosynchronous orbit positioned at 42 5oE It had a launch mass of 5 150 kg and had an expected service life of 15 years Specifications editIt was based on the Chinese DFH 4 satellite bus and carries a variety of transponders 4 C band 14 Ku band 8 Ka band 2 L band Its design was to provide coverage to many parts of Africa on C band and Ku band a global navigation beam on L band and the Ka band transponders with spot beams over Nigeria South Africa and Europe China s satellite export business editNigcomSat 1 represented a milestone for China s satellite export business For the first time the China Great Wall Industry Corporation provided all aspects of in orbit delivery of a satellite to an international customer This included satellite manufacture launch services ground station construction project financing insurance and training 2 Failure and replacement editOn 10 November 2008 0900 UTC the satellite was reportedly switched off for analysis and to avoid a possible collision with other satellites According to Nigerian Communications Satellite Limited it was put into emergency mode operation in order to effect mitigation and repairs 3 The satellite eventually failed after losing power on 11 November 2008 On March 24 2009 the Nigerian Federal Ministry of Science and Technology NigComSat Ltd and CGWIC signed a further contract for the in orbit delivery of the NigComSat 1R satellite NigComSat 1R also uses the DFH 4 satellite platform with improvements over the previous satellite and was delivered in the fourth quarter of 2011 as a replacement for the failed NigComSat 1 It was successfully launched on December 19 2011 4 References edit nbsp Spaceflight portal a b c d Encyclopedia Astronautica CZ 3B Archived 2008 03 19 at the Wayback Machine CGWIC News CGWIC Technical problems shut down Nigerian satellite AFP 2008 11 12 Archived from the original on 2011 01 04 Nigcomsat 1 Program In Orbit Delivery Program Communications Satellite CGWIC www cgwic com Retrieved 2020 08 11 External links editNigComSat Ltd Archived 2010 07 26 at the Wayback Machine NASRDA Gunter s Space Page NigComSat 1 Sat Index Retrieved from https en wikipedia org w index php title NigComSat 1 amp oldid 1169125299, wikipedia, wiki, book, books, library,

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