GSAT-14

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Template:Infobox spaceflight GSAT-14 is an Indian communications satellite launched in January 2014. It replaced the GSAT-3 satellite, which was launched in 2004. GSAT-14 was launched[1] by a Geosynchronous Satellite Launch Vehicle Mk.II, which incorporated an Indian-built cryogenic engine on the third stage.

Satellite

GSAT-14 is part of the GSAT series of satellites. Constructed by ISRO, it is based around the I-2K satellite bus, and has a dry mass of Template:Convert. With fuel, its mass is Template:Convert. The spacecraft has a design life of 12 years.[2]

The satellite carries six Ku-band and six Extended C-band transponders to provide coverage of the whole of India. The satellite is expected to provide enhanced broadcasting services over the GSAT-3 satellite.[3] GSAT-14 also carries two Ka-band beacons which will be used to conduct research into how weather affects Ka-band satellite communications. Fibre optic gyro, active pixel sun sensor, round type bolometer and field programmable gate array based earth sensors and thermal control coating experiments are new technologies which were flown as experiments in the satellite.[4] The satellite is powered by two solar arrays, generating 2,600 watts of power.[2]

Launch

A launch attempt on 19 August 2013, with a planned liftoff at 11:20 UTC (4:50 pm local time),[5][6] was scrubbed following a reported second stage fuel leak.[7][8] While the probe for the failure to launch was in progress, ISRO had decided to replace the liquid second stage (GS-2) with a new one.[9] In the process, all the four liquid strap-on stages were replaced with new ones.[9]

The satellite was launched from the Second Launch Pad of the Satish Dhawan Space Centre, atop a Geosynchronous Satellite Launch Vehicle Mk.II (GSLV Mk.II) rocket at 10:48 UTC (16:18 local time) on 5 January 2014.[10] The 29-hour countdown began on 4 January 2014.[11]

The flight marked India's forty-first satellite launch, the eighth launch of a GSLV, and the second flight of the Mk.II variant, whose maiden flight with GSAT-4 had failed in 2010. It ended a run of four consecutive GSLV launch failures which began with INSAT-4C in 2006.[12] The launch marked the first successful flight test of the CE-7.5, India's first cryogenically-fuelled rocket engine.

References

  1. ↑ ISRO successfully launches indigenous cryogenic engine-powered GSLV-D5. The Times of India(5 January 2014). Retrieved 7 February 2014.
  2. ↑ 2.0 2.1 GSLV-D5 Brochure. ISRO. Retrieved 19 August 2013.
  3. ↑ GSLV to launch GSAT–14 during mid-2012(18 June 2011). Retrieved 20 March 2013.
  4. ↑ Statistics.
  5. ↑ Successful ignition of indigenous cryogenic engine. The Hindu(29 March 2013). Retrieved 1 April 2013.
  6. ↑ ISRO’s GSLV-D5 slated for August 19 launch(23 July 2013). Retrieved 14 August 2013.
  7. ↑ ISRO aborts GSLV-D5 launch after fuel leak. Retrieved 19 August 2013.
  8. ↑ ISRO's GSLV-D5 launch put on hold due to fuel leakage. IBN Live. Retrieved 19 August 2013.
  9. ↑ 9.0 9.1 ISRO to make new stage for GSLV. Deccan Herald 13 September 2013
  10. ↑ GSLV-D5 with Indigenous Cryogenic Stage successfully launches GSAT-14 from SDSC SHAR, Sriharikota on 5 January 2014. ISRO(5 January 2014). Retrieved 5 January 2014.
  11. ↑ GSLV-D5 is ready to put GSAT-14 into orbit. Crazy Engineers(30 December 2013). Retrieved 31 December 2013.
  12. ↑ Indian GSLV set to launch GSAT-14 communications satellite, Graham, William. NASASpaceflight.com(19 August 2013). Retrieved 19 August 2013.

Template:GSAT Satellites Template:Indian spacecraft Template:Orbital launches in 2014

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