GSAT-11

2021-04-09T02:44:45Z

61.2.61.98:

{{Infobox spaceflight
| name = GSAT-11
| image = GSAT-11 in cleanroom 01.jpg
| image_caption =

| mission_type = [[Communications satellite|Communication]]
| operator = [[ISRO]]
| website =
| COSPAR_ID =
| SATCAT =
| mission_duration =

| spacecraft_bus = [[I-6K|I-6K Bus]]
| manufacturer = [[Indian Space Research Organisation Satellite Centre|ISRO Satellite Centre]]<br/>[[Space Applications Centre]]
| dry_mass =
| launch_mass = {{convert|5854|kg}}
| power = 13.6 kilowatts

| launch_date = 4 December 2018, 20:37 [[UTC]]<ref name=Arianespace_VA246/>
| launch_rocket = [[Ariane 5]] [[Ariane flight VA246|VA246]]
| launch_site = [[Guiana Space Centre]]
| launch_contractor = [[Arianespace]], [[ESA]]
| entered_service =

| disposal_type =
| deactivated = 

| orbit_epoch =
| orbit_reference = [[Geocentric orbit|Geocentric]]
| orbit_regime = [[Geostationary orbit|Geostationary]]
| orbit_periapsis =
| orbit_apoapsis =
| orbit_inclination =
| orbit_period =
| orbit_longitude = 74° East<ref name="GSAT11">{{cite web | url=http://www.sac.gov.in/SACSITE/GSAT-11.html | title=GSAT-11 | access-date=7 January 2014 | url-status=dead | archive-url=https://web.archive.org/web/20140107071044/http://www.sac.gov.in/SACSITE/GSAT-11.html | archive-date=7 January 2014 }}</ref>
| orbit_slot =
| apsis = gee

| trans_band = Ku/Ka band
| trans_frequency =
| trans_bandwidth = 16 Gbps
| trans_capacity =
| trans_coverage =
| trans_TWTA =
| trans_EIRP =
| trans_HPBW =
| programme = [[GSAT]]
| previous_mission = [[GSAT-29]]
| next_mission = [[GSAT-7A]]

}}

'''GSAT-11''' is an Indian geostationary communications satellite.<ref>{{cite web|url=https://timesofindia.indiatimes.com/home/science/indias-heaviest-satellite-is-ready-for-launch/articleshow/66930489.cms|title=India's heaviest satellite Gsat-11 is ready for launch}}</ref><ref>{{cite web|url=https://www.thehindu.com/sci-tech/cyclone-clouds-isros-gsat-29-launch-plan/article25473500.ece|title=Cyclone clouds ISRO’s GSAT-29 launch plan}}</ref> The 5854 kg<ref name=GSAT11_presskit>{{Cite web|url=https://www.isro.gov.in/sites/default/files/article-files/node/11623/gsat-11_press_kit.pdf|title=GSAT-11 press kit|date=27 November 2018|website=ISRO.gov.in|archive-url=https://web.archive.org/web/20181127111106/https://www.isro.gov.in/sites/default/files/article-files/node/11623/gsat-11_press_kit.pdf|archive-date=27 November 2018|access-date=27 November 2018}}</ref> satellite is based on the new [[I-6K]] Bus and carry 40 transponders in the Ku-band and Ka-band frequencies (32 Ka × Ku-Band Forward Link Transponders and 8 Ku × Ka band Return Link Transponders), which are capable of providing up to 16 Gbit/s throughput.<ref name=GSAT11_presskit/> GSAT-11 is India's heaviest satellite.<ref>{{cite web|url=https://www.thehindu.com/sci-tech/the-hindu-explains-gsat-11-indias-heaviest-satellite/article25663351.ece|title=The Hindu Explains: GSAT-11, India's heaviest satellite}}</ref>

==Launch==
Initially the satellite was planned to be launched in May 2018,<ref name="SFN_20180427">{{cite news |last1=Clark |first1=Stephen |title=Concerns with Indian satellite postpone next Ariane 5 launch |url=https://spaceflightnow.com/2018/04/27/concerns-with-indian-payload-postpone-next-ariane-5-launch/ |access-date=5 December 2018 |date=27 April 2018}}</ref><ref name=ht-20180806>{{cite news |title=ISRO Clears Launch Date Of GSAT 11 On November 30 |url=https://headlinestoday.org/national/1285/isro-clears-launch-date-of-gsat-11-on-november-30/ |access-date=6 August 2018 |agency=Headlines Today |date=6 August 2018 |archive-url=https://web.archive.org/web/20180806145522/https://headlinestoday.org/national/1285/isro-clears-launch-date-of-gsat-11-on-november-30/ |archive-date=6 August 2018 |url-status=dead }}</ref> but was delayed after ISRO recalled it back to India from the launch site in French Guiana for additional checks weeks after ISRO [[GSAT-6A#Loss of communication|lost communication]] to another communication satellite, the [[GSAT-6A]], soon after its launch in March 2018.<ref>{{cite web|last=Clark|first=Stephen|title=Concerns with Indian satellite postpone next Ariane 5 launch|work=SpaceFlight Now|url=https://spaceflightnow.com/2018/04/27/concerns-with-indian-payload-postpone-next-ariane-5-launch/|access-date=21 May 2018|date=27 April 2018}}</ref>

After the satellite was found fit for the launch, the new launch date had been set to 4 December 2018.<ref name=ht-20180806/><ref>{{cite news |title=Isro’s heaviest sat launch from French Guiana on Nov 30: Sivan |url=https://timesofindia.indiatimes.com/india/isros-heaviest-sat-launch-from-french-guiana-on-nov-30-sivan/articleshow/65285238.cms |access-date=6 August 2018 |agency=The Times Of India |date=6 August 2018}}</ref> GSAT 11 was launched successfully from the European Spaceport, French Guiana ([[Guiana Space Centre|Guiana Space Center]]) on 20:37 UTC, 4 December 2018 along with GEO-KOMPSAT-2A of [[KARI]].<ref>{{Cite web|url=https://www.isro.gov.in/Spacecraft/gsat-11-mission|title=GSAT-11 Mission - ISRO|website=www.isro.gov.in|access-date=2018-12-05}}</ref><ref name=Arianespace_VA246>{{Cite web|url=http://www.arianespace.com/press-release/arianespace-orbits-gsat-11-and-geo-kompsat-2a-for-indian-and-korean-space-agencies-isro-and-kari/|title=Arianespace orbits GSAT-11 and GEO-KOMPSAT-2A for Indian and Korean space agencies: ISRO and KARI|website=Arianespace|access-date=2018-12-05}}</ref>

==Satellite==
GSAT-11 was developed at the cost of Rs. 573.68 Crores and its launch was procured at cost of Rs. 810.94 Crores.<ref>{{Cite web|url=https://www.ndtv.com/india-news/indias-heaviest-most-powerful-satellite-gsat-11-the-big-bird-launched-successfully-from-french-guian-1957931|title=India's Most Powerful Satellite, 'The Big Bird', Launched Successfully|website=NDTV.com|access-date=2018-12-05}}</ref><ref>{{Cite web|url=http://164.100.47.194/Loksabha/Questions/QResult15.aspx?qref=75693&lsno=16|title=Questions : Lok Sabha|website=164.100.47.194|access-date=2018-12-27}}</ref><ref>{{Cite web|url=http://164.100.47.190/loksabhaquestions/annex/16/AU2335.pdf|title=Loksabha Question no.2335|date=26 December 2018|website=164.100.47.190|access-date=2018-12-27}}</ref> The payload consists of 40 high power Ku, Ka band transponders built at [[Space Applications Centre]] in [[Ahmedabad]].<ref>{{cite web | url=http://www.livemint.com/Industry/ucSly8yCEs48CDNKfZoKiJ/Isro-to-launch-GSAT11-with-40-transponders-in-2012.html | title=Isro to launch GSAT-11 with 40 transponders in 2012 | publisher=Live Mint | date=Jul 24, 2009 | access-date=March 20, 2013 | author=K. Raghu}}</ref>

== See also ==
* [[Ariane flight VA246]]
* [[GSAT]]

==References==
{{Reflist}}

==External links==
* [https://www.isro.gov.in/Spacecraft/gsat-11-mission Official GSAT-11 page]

{{GSAT Satellites}}
{{Indian spacecraft}}
{{Orbital launches in 2018}}

[[Category:GSAT satellites]]
[[Category:Communications satellites in geostationary orbit]]
[[Category:Spacecraft launched by India in 2018]]
[[Category:Ariane commercial payloads]]
[[Category:December 2018 events in South America]]
[[Category:2018 in French Guiana]]

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GSAT-11