GSAT-31
{{short description|Indian telecommunications satellite}}
{{Infobox spaceflight
| name = GSAT-31
| image = File:GSAT-31 render 02.png
| image_caption = GSAT-31 in deployed configuration
| mission_type = Communication
| operator = ISRO
| website =
| COSPAR_ID =
| SATCAT =
| mission_duration = Planned: 15 years
Elapsed: {{time interval|6 February 2019|show=ymd|sep=,}}
| spacecraft_bus = I-2K
| manufacturer = ISRO Satellite Centre
Space Applications Centre
| dry_mass =
| launch_mass = {{cvt|2536|kg|lb}}
| power = solar arrays, batteries
| launch_date = 6 February 2019
| launch_rocket = Ariance 5 VCA
| launch_contractor = Arianespace
| orbit_epoch =
| orbit_reference = Geocentric
| orbit_regime = Geostationary
| orbit_periapsis =
| orbit_apoapsis =
| orbit_inclination =
| orbit_period =
| orbit_longitude =
| orbit_slot = 82.95°E{{cite web |title=Historical satellite position data for GSAT-31 |url=https://www.satellite-calculations.com/Satellite/getpositionhistory.php?44035 |access-date=12 September 2019}}
48°E (Feb to Sept 2019)
| apsis =
| trans_band = Ku
| trans_frequency =
| trans_bandwidth =
| trans_capacity =
| trans_coverage =
| trans_TWTA =
| trans_EIRP =
| trans_HPBW =
| programme = GSAT
| previous_mission = GSAT-7A
| next_mission = GSAT-30
}}
GSAT-31 is a high-throughput telecommunication satellite developed by the Indian Space Research Organisation (ISRO).{{cite web| url=https://www.isro.gov.in/gsat-31/gsat-31-brochure| title=GSAT 31 Brochure| access-date=5 February 2019| archive-date=7 February 2019| archive-url=https://web.archive.org/web/20190207015837/https://www.isro.gov.in/gsat-31/gsat-31-brochure| url-status=dead}}
Mission
The satellite's main communication payload is Ku band and acts as a replacement of the aging INSAT-4CR. The satellite provides advanced telecommunication to the Indian subcontinent. It is used for VSAT networks, television uplinks, digital signage new gathering, DTH services and other communication systems. This is the 40th communication satellite launched by ISRO and the 22nd launch of ISRO satellite by Arianespace.{{Cite web|url=https://www.ndtv.com/india-news/indias-40th-communication-satellite-gsat-31-launched-1988977|title=India's 40th Communication Satellite, GSAT-31, Launched|access-date= 6 February 2019}}{{Cite web|url=http://www.arianespace.com/press-release/for-its-first-mission-of-2019-arianespace-to-launch-two-telecommunications-satellites-with-ariane-5/|title=For its first mission of 2019, Arianespace to launch two telecommunications satellites with Ariane 5|website=Arianespace|language=en-US|access-date=2019-09-12}}{{Cite web|url=http://www.arianespace.com/wp-content/uploads/2019/01/VA247-launchkit-EN.pdf|title=Arianespace VA247 launchkit}}
Launch
The satellite was launched through the 103rd flight of Ariane 5 ECA on 5 February 2019 at 21:01 UTC, the vehicle also deployed Hellas-Sat-4/SaudiGeoSat-1.{{cite news |last=Bergin |first=Chris |title=Ariane 5 launches Hellas-Sat-4/SaudiGeoSat-1 and GSAT 31 |url=https://www.nasaspaceflight.com/2019/02/ariane-5-hellas-sat-4-saudigeosat-1-gsat-31-launch/ |work=NASASpaceFlight |date=5 February 2019 |access-date=6 February 2019}}
The launch of the GSAT-30 and GSAT-31 by Arianespace is expected to cost Rs 950 crore.{{Cite web |title=ISRO faces costly proposition over recall of GSAT-11 |url=https://www.newindianexpress.com/states/karnataka/2018/aug/01/isro-faces-costly-proposition-over-recall-of-gsat-11-1851412.html |access-date=2022-04-06 |website=The New Indian Express}}
Relocation
In July 2019, GSAT-31 maneuvered to lower its altitude and drifted eastward to reach new slot at 82.95°E on 31 August 2019.
References
{{reflist}}
{{GSAT Satellites}}
{{Indian spacecraft}}
{{Orbital launches in 2019}}
Category:Communications satellites in geostationary orbit
Category:Spacecraft launched by India in 2019
Category:Ariane commercial payloads
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