GSAT-14
{{Short description|Indian communications satellite}}
{{Use dmy dates|date=December 2020}}{{use Indian English|date=December 2013}}
{{Infobox spaceflight|auto=all
| name = GSAT-14
| image =
| image_caption =
| mission_type = Communication
| operator = ISRO
| website =
| COSPAR_ID = 2014-001A
| SATCAT = 39498
| mission_duration = Planned: 12 years
Elapsed: {{time interval|5 January 2014|show=ymd|sep=,}}
| spacecraft_bus = I-2K
| manufacturer = ISRO Satellite Centre
Space Applications Centre
| dry_mass = {{convert|851|kg|lb}}
| launch_mass = {{convert|1982|kg|lb}}
| power = 2,600 watts
| launch_date = {{start-date|5 January 2014, 10:48|timezone=yes}} UTC{{cite news | url=http://www.thehindu.com/news/national/gslvd5-to-lift-off-on-january-5/article5487536.ece | title=GSLV-D5 to lift off on 5 January | work=The Hindu | date=22 December 2013 | access-date=24 December 2013 | author=Subramanian, T. S. | location=India}}
| launch_rocket = GSLV Mk.II D5
| launch_site = Satish Dhawan SLP
| launch_contractor = ISRO
| entered_service =
| disposal_type =
| deactivated =
| orbit_epoch = 22 January 2015, 20:39:21 UTC{{cite web|url=http://www.n2yo.com/satellite/?s=39498|title=GSAT-14 Satellite details 2014-001A NORAD 39498|publisher=N2YO|date=22 January 2015|access-date=25 January 2015}}
| orbit_reference = Geocentric
| orbit_regime = Geostationary
| orbit_periapsis = {{convert|35776|km|mi}}
| orbit_apoapsis = {{convert|35809|km|mi}}
| orbit_inclination = 0.11 degrees
| orbit_period = 1436.12 minutes
| orbit_longitude = 74° East
| orbit_slot =
| apsis = gee
| trans_band = 6 Ku band
6 ext. C band
2 Ka band
| trans_frequency =
| trans_bandwidth =
| trans_capacity =
| trans_coverage = India
| trans_TWTA =
| trans_EIRP =
| trans_HPBW =
| programme = GSAT
| previous_mission = GSAT-7
| next_mission = GSAT-16
}}
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{{cite news|url=http://timesofindia.indiatimes.com/india/ISRO-successfully-launches-indigenous-cryogenic-engine-powered-GSLV-D5/articleshow/28437867.cms |title=ISRO successfully launches indigenous cryogenic engine-powered GSLV-D5 |work=The Times of India|date=5 January 2014 |access-date=7 February 2014}} 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 {{convert|851|kg}}. With fuel, its mass is {{convert|1982|kg}}. The spacecraft has a design life of 12 years.{{cite web|url=http://www.isro.gov.in/gslv-d5/pdf/brochure.pdf|title=GSLV-D5 Brochure|publisher=ISRO|access-date=19 August 2013|archive-url=https://web.archive.org/web/20140101052021/http://www.isro.gov.in/gslv-d5/pdf/brochure.pdf|archive-date=1 January 2014|url-status=dead}}
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.{{cite web | url=http://www.thehindu.com/sci-tech/science/gslv-to-launch-gsat14-during-mid2012/article2113608.ece | title=GSLV to launch GSAT–14 during mid-2012 | work=The Hindu| date=18 June 2011 | access-date=20 March 2013}} 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.{{cite web|url=http://space.skyrocket.de/doc_sdat/gsat-14.htm|title=Statistics}} The satellite is powered by two solar arrays, generating 2,600 watts of power.
Launch
A launch attempt on 19 August 2013, with a planned liftoff at 11:20 UTC (4:50 pm local time),{{cite news | url=http://www.thehindu.com/sci-tech/science/successful-ignition-of-indigenous-cryogenic-engine/article4559154.ece | title=Successful ignition of indigenous cryogenic engine | date=29 March 2013 | work=The Hindu| access-date=1 April 2013 | location=Chennai}}{{cite news| url=http://zeenews.india.com/news/space/isros-gslv-d5-slated-for-august-19-launch_864162.html | title=ISRO's GSLV-D5 slated for August 19 launch | publisher=Zee Media Bureau | date=23 July 2013 | access-date=14 August 2013}} was scrubbed following a reported second stage fuel leak.{{cite web|url=http://www.thehindu.com/news/national/isro-aborts-gslvd5-launch-after-fuel-leak/article5038402.ece?homepage=true|title=ISRO aborts GSLV-D5 launch after fuel leak|work=The Hindu|access-date=19 August 2013}}{{cite web|url=http://ibnlive.in.com/news/isros-gslvd5-launch-put-on-hold-due-to-technical-glitch/415540-11.html|archive-url=https://web.archive.org/web/20131229231028/http://ibnlive.in.com/news/isros-gslvd5-launch-put-on-hold-due-to-technical-glitch/415540-11.html|url-status=dead|archive-date=29 December 2013|title=ISRO's GSLV-D5 launch put on hold due to fuel leakage|publisher=IBN Live|access-date=19 August 2013}} 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.{{cite web| url=http://www.deccanherald.com/content/356989/isro-make-stage-gslv.html|title=ISRO to make new stage for GSLV|date=14 September 2013 }} Deccan Herald 13 September 2013 In the process, all the four liquid strap-on stages were replaced with new ones.
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.{{cite web | url=http://www.isro.gov.in/gslv-d5/mission.aspx | title=GSLV-D5 with Indigenous Cryogenic Stage successfully launches GSAT-14 from SDSC SHAR, Sriharikota on 5 January 2014 | publisher=ISRO | date=5 January 2014 | access-date=5 January 2014 | url-status=dead | archive-url=https://web.archive.org/web/20140104230506/http://www.isro.gov.in/gslv-d5/mission.aspx | archive-date=4 January 2014}} The 29-hour countdown began on 4 January 2014.{{cite web | url=http://www.crazyengineers.com/threads/isros-gslv-d5-is-ready-to-put-gsat-14-into-orbit.72429/ | title=GSLV-D5 is ready to put GSAT-14 into orbit | publisher=Crazy Engineers | date=30 December 2013 | access-date=31 December 2013}}
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.{{cite web|url=http://www.nasaspaceflight.com/2013/08/indian-gslv-launch-gsat-14-communications-satellite/|title=Indian GSLV set to launch GSAT-14 communications satellite|publisher=NASASpaceflight.com|first=William|last=Graham|date=19 August 2013|access-date=19 August 2013|archive-url=https://web.archive.org/web/20130822012051/http://www.nasaspaceflight.com/2013/08/indian-gslv-launch-gsat-14-communications-satellite/|archive-date=22 August 2013|url-status=dead}} The launch marked the first successful flight test of the CE-7.5, India's first cryogenically fuelled rocket engine.
References
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External links
{{Portal|Spaceflight}}
- [http://www.isro.org/scripts/futureprogramme.aspx ISRO Future Programmes]
- [https://web.archive.org/web/20140104204430/http://isro.gov.in/gslv-d5/d5-updates.aspx GSAT-14 ISRO official website]
- [https://web.archive.org/web/20140104205503/http://www.shar.gov.in/sdsc/node/269 GSAT-14 Satish Dhawan Space Centre]
- [http://www.vssc.gov.in/internet/# GSAT-14 Vikram Sarabhai Space Centre] {{Webarchive|url=https://web.archive.org/web/20140108103541/http://www.vssc.gov.in/internet/ |date=8 January 2014 }}
{{GSAT Satellites}}
{{Indian spacecraft}}
{{Orbital launches in 2014}}