CleanupBot II at 23:40, 13 August 2023

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{{Infobox spaceflight
| name = GSAT-8
| image = Gsat8 img.gif
| image_caption = GSAT-8

| mission_type = [[Communications satellite|Communication]]
| operator = [[INSAT]]
| website =
| COSPAR_ID = 2011-022A
| SATCAT =
| mission_duration = Planned: 12 years <br /> Elapsed: {{time interval|20 May 2011|show=ymd|sep=,}}

| spacecraft_bus = [[I-3K]]
| manufacturer = [[Indian Space Research Organisation|ISRO]]
| dry_mass = {{convert|1426|kg|lb}}<ref name="GSAT8Brochure">{{cite web|title=GSAT-8 Brochure|url=http://www.isro.org:80/pdf/gsat-8-brochure.pdf|archive-url=https://web.archive.org/web/20130311183311/http://www.isro.org/pdf/gsat-8-brochure.pdf|url-status=dead|archive-date=11 March 2013|access-date=30 November 2017}}</ref>
| launch_mass = {{convert|3093|kg|lb}}<ref name="GSAT8Brochure" />
| power = 6,242 watts<ref name="GSAT8Brochure" />

| launch_date = {{start-date|20 May 2011, 20:38|timezone=yes}} UTC
| launch_rocket = [[Ariane 5|Ariane 5ECA]] VA202
| launch_site = [[Guiana Space Centre|Kourou]] [[ELA-3]]
| launch_contractor = [[Arianespace]]
| 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 = 55° East
| orbit_slot =
| apsis = gee

| trans_band = 24 [[Ku band]] and 2 in [[L band|L1]] & [[L band|L5]] bands ([[GAGAN]])
| trans_frequency =
| trans_bandwidth =
| trans_capacity =
| trans_coverage =
| trans_TWTA =
| trans_EIRP =
| trans_HPBW =
| programme = [[GSAT]]
| previous_mission = [[GSAT-5P]]
| next_mission = [[GSAT-12]]
}}

'''GSAT-8''' or '''INSAT-4G''' is communication satellite. It was constructed by the [[Indian Space Research Organisation]], as part of [[INSAT]] system. GSAT-8 was launched on May 21, 2011 from [[Kourou]], [[French Guiana]]. The rocket, an [[Ariane 5]] was the carrier, marketed by the European [[Arianespace]]. First satellite to carry [[GAGAN]] payload followed up by [[GSAT-10]] and in-orbit spare [[GSAT-15]].<ref>{{Cite web|url=http://www.isac.gov.in/navigation/gagan.jsp|title=GAGAN - GPS Aided GEO Augumented Navigation|website=www.isac.gov.in|access-date=2017-11-30}}</ref><ref>{{Cite web|url=https://www.isac.gov.in/communication/html/gsat-8.jsp|title=SALIENT FEATURES OF GSAT-8|website=www.isac.gov.in|access-date=2018-03-17}}</ref>

==Launch==
Prior to launch, the spacecraft was transported from [[India]] to [[Cayenne – Rochambeau Airport]] in [[French Guiana]] by an [[Antonov An-124]] cargo aircraft. The success of the launch is said to have made up for the previous loss of two satellites on the indigenous [[GSLV]] rocket.<ref>{{cite news|url=http://articles.timesofindia.indiatimes.com/2011-05-21/india/29568098_1_gsat-8-communication-satellite-indian-national-satellite-system|archive-url=https://web.archive.org/web/20110909174938/http://articles.timesofindia.indiatimes.com/2011-05-21/india/29568098_1_gsat-8-communication-satellite-indian-national-satellite-system|url-status=dead|archive-date=2011-09-09|work=[[The Times of India]]|title=GSAT-8 communication satellite launched successfully, India’s advanced communication satellite|access-date=2013-03-13}}</ref><ref>{{cite news|url=http://www.thehindu.com/sci-tech/science/article2036181.ece|title=Ariane 5 launches GSAT-8 from French Guiana, India’s advanced communication satellite|publisher=The Hindu | location=Chennai, India|first=Vaiju|last=Naravane|date=21 May 2011}}</ref> GSAT-8 was co-located with [[INSAT-3E]] at 55°E.

==References==
{{Reflist}}

{{GSAT Satellites}}
{{INSAT Satellites}}
{{Indian spacecraft}}
{{Orbital launches in 2011}}

[[Category:GSAT satellites]]
[[Category:INSAT satellites]]
[[Category:Spacecraft launched in 2011]]
[[Category:2011 in India]]
[[Category:Communications satellites in geostationary orbit]]
[[Category:Ariane commercial payloads]]

GSAT-8 - Revision history

CleanupBot II at 23:40, 13 August 2023