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	== See also ==		== See also ==
	~~{{Portal\|Spaceflight}}~~
	* [[Integrated_Space_Cell#Military\|Indian military satellites]]		* [[Integrated_Space_Cell#Military\|Indian military satellites]]
	* [[GSAT-7A]]		* [[GSAT-7A]]

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{{Infobox spaceflight
| name = GSAT-7
| image =
| image_caption =

| mission_type = [[Communications satellite|Communication]]
| operator = [[ISRO]]
| website =
| COSPAR_ID = 2013-044B
| SATCAT = 39234
| mission_duration = Planned: 7 years<br /> Elapsed: {{time interval|29 August 2013|show=ymd|sep=,}}

| spacecraft_bus = [[I-2K]]
| manufacturer = [[Indian Space Research Organisation Satellite Centre|ISRO Satellite Centre]]<br/>[[Space Applications Centre]]
| dry_mass =
| launch_mass = {{convert|2650|kg}}
| power = 3 kilowatts

| launch_date = {{start-date|29 August 2013, 20:30|timezone=yes}} UTC
| launch_rocket = [[Ariane 5|Ariane 5ECA]]
| launch_site = [[Guiana Space Centre|Kourou]] [[ELA-3]]
| launch_contractor = [[Arianespace]]
| entered_service =

| disposal_type =
| deactivated = 

| orbit_epoch = 7 November 2013, 23:12:49 UTC<ref name="heavens-above">{{cite web|url=http://www.heavens-above.com/orbit.aspx?satid=39234|title=GSAT 7 - Orbit|first=Chris|last=Peat|work=Heavens Above|date=7 November 2013|access-date=9 November 2013}}</ref>
| orbit_reference = [[Geocentric orbit|Geocentric]]
| orbit_regime = [[Geostationary orbit|Geostationary]]
| orbit_periapsis = {{convert|35779|km|mi}}
| orbit_apoapsis = {{convert|35806|km|mi}}
| orbit_inclination = 0.06 degrees
| orbit_period = 23.93 hours
| orbit_longitude = 74° East
| orbit_slot =
| apsis = gee

| trans_band = UHF<br/>C-band<br/>Ku-band
| trans_frequency =
| trans_bandwidth =
| trans_capacity =
| trans_coverage =
| trans_TWTA =
| trans_EIRP =
| trans_HPBW =
| programme = [[GSAT]]
| previous_mission = [[GSAT-10]]
| next_mission = [[GSAT-14]]
}}

'''GSAT-7''' or '''INSAT-4F''' is a multi-band military communications satellite developed by [[Indian Space Research Organisation Satellite Centre|ISRO]]. The [[Indian Navy]] is the user of the multi-band communication spacecraft, which has been operational since September 2013. According to defense experts, the satellite will enable the navy to extend its blue water capabilities and stop relying on foreign satellites like Inmarsat, which provide communication services to its ships.<ref>{{cite web |url=http://www.defencenews.in/defence-news-internal.asp?get=new&id=1833 |title=Archived copy |access-date=2013-09-04 |url-status=dead |archive-url=https://archive.today/20130904180311/http://www.defencenews.in/defence-news-internal.asp?get=new&id=1833 |archive-date=2013-09-04 }}

http://articles.timesofindia.indiatimes.com/2013-08-30/india/41617825_1_advanced-communication-satellite-gslv-gsat-7</ref><ref>{{cite web|url=http://www.rediff.com/news/2002/apr/18insat.htm?mh|title=INSAT-4 series satellite launches|publisher=rediff.com|access-date=2012-04-12}}</ref>

==Satellite==
GSAT-7, the multi-band communication satellite named ''Rukmini''<ref>{{cite news |title= GSAT-7 to boost India's military capabilities |url= http://timesofindia.indiatimes.com/india/GSAT-7-to-boost-Indias-military-capabilities/articleshow/22158766.cms |newspaper= [[The Times of India]] |date= 30 August 2013 |access-date= 4 September 2013}}</ref> carries the payloads in [[UHF]], [[C band (IEEE)|C band]] and {{Ku band}}. It is the first dedicated military communication satellite (unlike earlier dual use satellites) built by ISRO that will provide services to the Indian defence forces<ref>{{cite news | url=http://www.deccanherald.com/content/315652/first-naval-satellite-may-launched.html | title=First naval satellite may be launched this year | newspaper=[[Deccan Herald]] | date=March 1, 2013 | access-date=March 13, 2013}}</ref> with the main user being the Indian Navy.<ref>{{cite web | url=http://www.aame.in/2012/07/gsat-7-insat-4f-india-military.html | title=GSAT-7 [INSAT-4F] - India's military communication satellite [Indian Navy] | date=July 23, 2012 | access-date=July 23, 2012}}</ref> The {{convert|2650|kg}} GSAT-7 is the last of ISRO's seven fourth-generation satellites. Its foreign launch cost has been put at Rs. 480 crore, with the satellite costing Rs. 185 crore. The multiple-band spacecraft will be used exclusively by the Navy to shore up secure, real-time communications among its warships, submarines, aircraft and land systems. GSAT-7/ INSAT-4F is said to significantly improve the country's naval operations around the world. ISRO is expected to launch the second satellite, [[GSAT-7A]], in the second half of 2018.<ref>{{Cite web|url = https://www.ndtv.com/india-news/isro-missions-2018-12-launches-12-months-isros-mega-plan-for-2018-revealed-details-here-1838144|title = 12 Missions, 12 Months - ISRO's Mega Plan For 2018 Revealed. Details Here|date = April 16, 2018|access-date = July 1, 2018 |website =NDTV.com |publisher =NDTV }}</ref> GSAT 7a will be used by the [[Indian air force]] .<ref>{{Cite web|url = http://archive.defensenews.com/article/20130910/DEFREG03/309100007/India-s-Tech-Roadmap-Points-Small-Sats-Space-Weapons|title = India's Tech Roadmap Points to Small Sats, Space Weapons|archive-url = https://archive.today/20150121220451/http://archive.defensenews.com/article/20130910/DEFREG03/309100007/India-s-Tech-Roadmap-Points-Small-Sats-Space-Weapons|archive-date = 2015-01-21|url-status = dead}}</ref><ref>{{Cite web|url = http://ibnlive.in.com/news/iaf-to-induct-214-fifth-generation-fighter-jets/189940-3.html|archive-url = https://web.archive.org/web/20111006000407/http://ibnlive.in.com/news/iaf-to-induct-214-fifth-generation-fighter-jets/189940-3.html|url-status = dead|archive-date = 2011-10-06|title = IAF to induct 214 fifth generation fighter jets}}</ref> The state-of-the-art GSAT 7 satellite carrying payloads operating in UHF, S, C and Ku bands, had a lift-off mass of {{convert|2625|kg}} and is based on ISRO's {{convert|2500|kg}} satellite bus with some new technological elements, including the antennae. After a flight of almost 34 minutes, the satellite was injected into a geosynchronous transfer orbit (GTO) of {{convert|249|km|adj=on}} [[perigee]], {{convert|35929|km|adj=on}} [[apogee]] and an inclination of 3.5 degree with respect to the equator.<ref>{{Cite web|url=https://timesofindia.indiatimes.com/india/Indias-first-defence-satellite-GSAT-7-launched-successfully/articleshow/22152778.cms|title=India's first defence satellite GSAT-7 launched successfully | India News - Times of India|website=The Times of India}}</ref>

==Launch==
The satellite was launched early on 30 August 2013 atop an [[Ariane 5 ECA]] rocket from [[Guiana Space Centre|Kourou]], French Guiana.<ref>{{cite web |url=http://www.isro.org/pressrelease/scripts/pressreleasein.aspx?Aug30_2013 |title=India's Advanced Communication Satellite GSAT-7 Launched Successfully |publisher=[[ISRO]] |date=2013-08-30 |access-date=2013-08-30 |archive-url=https://web.archive.org/web/20131217204640/http://www.isro.org/pressrelease/scripts/pressreleasein.aspx?Aug30_2013 |archive-date=2013-12-17 |url-status=dead }}</ref>

India's first dedicated military satellite was put into a geosynchronous orbit, about {{convert|36000|km}} above Earth, five days after it was launched after three orbit-raising manoeuvres from ISRO's [[Master Control Facility (ISRO)|Master Control Facility]] at [[Hassan, Karnataka|Hassan]] in Karnataka.<ref>{{cite news |title= India's first 'military' satellite GSAT-7 put into earth's orbit |url= http://www.ndtv.com/article/india/india-s-first-military-satellite-gsat-7-put-into-earth-s-orbit-414080 |publisher= [[NDTV]] |date= 4 September 2013 |access-date= 4 September 2013}}</ref> The 2.5-tonne spacecraft's antennae, including the ultra high frequency Helix antenna were deployed before it was stabilised on its three-axis in the orbit.<ref>{{cite web|url=http://www.indistannews.com/indian-military-satellite-put-into-earths-orbit/ |title=Indian ‘military’ satellite put into earth’s orbit – Indistan News – National, Political and States News |publisher=Indistannews.com |access-date=2013-09-04 |url-status=dead |archive-url=https://web.archive.org/web/20130921054743/http://www.indistannews.com/indian-military-satellite-put-into-earths-orbit/ |archive-date=2013-09-21 }}</ref> All of the on-board transponders were switched on successfully on September 18, 2013<ref>{{cite web | url=http://www.isro.org/pressrelease/scripts/pressreleasein.aspx?Sep18_2013 | title=GSAT-7 Transponders Successfully Switched ON | publisher=Indian Space Research Organisation | date=September 18, 2013 | access-date=October 15, 2013 | archive-url=https://web.archive.org/web/20131017142129/http://www.isro.org/pressrelease/scripts/pressreleasein.aspx?Sep18_2013 | archive-date=October 17, 2013 | url-status=dead }}</ref>

==Capability==

Rukmini will provide networking capabilities to various Indian Naval assets. During Theater-level Readiness and Operational Exercise (Tropex) in the Bay of Bengal in 2014, Rukmini was able to network about 60 ships and 75 aircraft seamlessly. Rukmini has a nearly 2,000 nautical mile 'footprint' over the Indian Ocean Region.<ref>{{Cite web|url=https://timesofindia.indiatimes.com/india/Indian-Navy-joins-search-for-missing-Malaysian-plane-in-the-Malacca-Straits/articleshow/31855418.cms|title=Straits of Malacca: Indian Navy joins search for missing Malaysian plane in the Malacca Straits | India News - Times of India|website=The Times of India}}</ref>

==Replacement==
The [[Indian Navy]] placed an order for [[GSAT-7R]] on June 11, 2019. GSAT-7R is expected to be launched in 2020 to eventually replace GSAT-7.<ref>{{Cite news|url=https://economictimes.indiatimes.com/news/defence/navy-to-buy-rs-1589-crore-satellite-from-isro/articleshow/70283927.cms?from=mdr|title=Navy to buy Rs 1,589 crore satellite from ISRO|last=Pubby|first=Manu|date=2019-07-18|work=The Economic Times|access-date=2019-07-19}}</ref>

== See also ==
{{Portal|Spaceflight}}
* [[Integrated_Space_Cell#Military|Indian military satellites]]
* [[GSAT-7A]]
* [[GSAT]]
* [[Indian National Satellite System]]
* [[List of Indian satellites]]

==References==
{{reflist|33em}}

==External links==
* [https://web.archive.org/web/20130902014754/http://www.isro.org/satellites/gsat-7.aspx ISRO GSAT-7]
* {{cite web |url=http://www.arianespace.com/images/launch-kits/launch-kit-pdf-eng/VA215-Eutelsat25B-EShail1-GSAT7-GB.pdf |title=Ariane-5 VA215 Mission Profile |publisher=[[Arianespace]] |url-status=dead |archive-url=https://web.archive.org/web/20131102115408/http://www.arianespace.com/images/launch-kits/launch-kit-pdf-eng/VA215-Eutelsat25B-EShail1-GSAT7-GB.pdf |archive-date=2013-11-02 }}

{{GSAT Satellites}}
{{INSAT Satellites}}
{{Indian spacecraft}}
{{Orbital launches in 2013}}

[[Category:GSAT satellites]]
[[Category:INSAT satellites]]
[[Category:Satellites orbiting Earth]]
[[Category:Spacecraft launched in 2013]]
[[Category:2013 in India]]

GSAT-7 - Revision history

Aoufa at 11:00, 23 November 2025

CleanupBot II: Removed empty portal template using script

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