GSAT-7 or INSAT-4F is a multi-band military communications satellite developed by the Indian Space Research Organisation. 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.[2][3]
GSAT-7, the multi-band communication satellite named Rukmini[4] carries the payloads in UHF, 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 Armed Forces[5] with the main user being the Indian Navy.[6] Its procured launch cost has been put at ₹480 crore, with the satellite costing ₹185 crore.[7] Cost of whole project per Memorandum of Understanding with ISRO was ₹950 crores.[8]
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.
GSAT 7 satellite carrying payloads operating in UHF, S, C and Ku bands, had a lift-off mass of 2,650 kilograms (5,840 lb) and is based on ISRO's 2,000 kilograms (4,400 lb) class satellite bus I-2K with some new technological elements, including the antennae.[9] After a flight of almost 34 minutes, the satellite was injected into a geosynchronous transfer orbit (GTO) of 249-kilometre (155 mi) perigee, 35,929-kilometre (22,325 mi) apogee and an inclination of 3.5 degree with respect to the equator.[10]
India's first dedicated military satellite was put into a geosynchronous orbit, about 36,000 kilometres (22,000 mi) above Earth, five days after it was launched after three orbit-raising manoeuvres from ISRO's Master Control Facility at Hassan in Karnataka.[14] 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.[15] All of the on-board transponders were switched on successfully on September 18, 2013[16]
Capabilityedit
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.[17]
Replacementedit
The Indian Navy placed an order for GSAT-7R on June 11, 2019. GSAT-7R is expected to eventually replace GSAT-7.[18]
^"INSAT-4 series satellite launches". rediff.com. Retrieved 2012-04-12.
^"GSAT-7 to boost India's military capabilities". The Times of India. 30 August 2013. Retrieved 4 September 2013.
^"First naval satellite may be launched this year". Deccan Herald. March 1, 2013. Retrieved March 13, 2013.
^"GSAT-7 [INSAT-4F] - India's military communication satellite [Indian Navy]". July 23, 2012. Retrieved July 23, 2012.
^"What is GSAT-7 Rukmini?". The Indian Express. 2017-07-05. Retrieved 2021-11-13.
^"Ministry of Defence, Demands for Grants (2010-2011)" (PDF). The cost of the Project as per Memorandum of Understanding signed with ISRO is Rs. 950 crores.
^. 2017-08-20. Archived from the original on 2017-08-20. Retrieved 2021-11-13.
^"India's first defence satellite GSAT-7 launched successfully | India News - Times of India". The Times of India. 30 August 2013.
^"12 Missions, 12 Months - ISRO's Mega Plan For 2018 Revealed. Details Here". NDTV.com. NDTV. April 16, 2018. Retrieved July 1, 2018.
^. ISRO. 2013-08-30. Archived from the original on 2013-12-17. Retrieved 2013-08-30.
^"India's first 'military' satellite GSAT-7 put into earth's orbit". NDTV. 4 September 2013. Retrieved 4 September 2013.
^. Indistannews.com. Archived from the original on 2013-09-21. Retrieved 2013-09-04.
^. Indian Space Research Organisation. September 18, 2013. Archived from the original on October 17, 2013. Retrieved October 15, 2013.
^"Straits of Malacca: Indian Navy joins search for missing Malaysian plane in the Malacca Straits | India News - Times of India". The Times of India. 11 March 2014.
^Pubby, Manu (2019-07-18). "Navy to buy Rs 1,589 crore satellite from ISRO". The Economic Times. Retrieved 2019-07-19.
External linksedit
(PDF). Arianespace. Archived from the original (PDF) on 2013-11-02.
January 01, 1970
gsat, insat, multi, band, military, communications, satellite, developed, indian, space, research, organisation, indian, navy, user, multi, band, communication, spacecraft, which, been, operational, since, september, 2013, according, defense, experts, satellit. GSAT 7 or INSAT 4F is a multi band military communications satellite developed by the Indian Space Research Organisation 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 2 3 GSAT 7Mission typeCommunicationOperatorISROCOSPAR ID2013 044BSATCAT no 39234Mission durationPlanned 7 years Elapsed 10 years 7 months 28 daysSpacecraft propertiesBusI 2KManufacturerISRO Satellite CentreSpace Applications CentreLaunch mass2 650 kilograms 5 840 lb Power3 kilowattsStart of missionLaunch date29 August 2013 20 30 2013 08 29UTC20 30Z UTCRocketAriane 5ECALaunch siteKourou ELA 3ContractorArianespaceOrbital parametersReference systemGeocentricRegimeGeostationaryLongitude74 EastPerigee altitude35 779 kilometres 22 232 mi Apogee altitude35 806 kilometres 22 249 mi Inclination0 06 degreesPeriod23 93 hoursEpoch7 November 2013 23 12 49 UTC 1 TranspondersBandUHFC bandKu bandGSAT GSAT 10GSAT 14 Contents 1 Satellite 2 Launch 3 Capability 4 Replacement 5 See also 6 References 7 External linksSatellite editGSAT 7 the multi band communication satellite named Rukmini 4 carries the payloads in UHF 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 Armed Forces 5 with the main user being the Indian Navy 6 Its procured launch cost has been put at 480 crore with the satellite costing 185 crore 7 Cost of whole project per Memorandum of Understanding with ISRO was 950 crores 8 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 GSAT 7 satellite carrying payloads operating in UHF S C and Ku bands had a lift off mass of 2 650 kilograms 5 840 lb and is based on ISRO s 2 000 kilograms 4 400 lb class satellite bus I 2K with some new technological elements including the antennae 9 After a flight of almost 34 minutes the satellite was injected into a geosynchronous transfer orbit GTO of 249 kilometre 155 mi perigee 35 929 kilometre 22 325 mi apogee and an inclination of 3 5 degree with respect to the equator 10 ISRO launched a second satellite GSAT 7A for Indian Air Force on 19 December 2018 on its Geosynchronous Satellite Launch Vehicle GSLV F11 11 12 Launch editThe satellite was launched early on 30 August 2013 atop an Ariane 5 ECA rocket from Kourou French Guiana 13 India s first dedicated military satellite was put into a geosynchronous orbit about 36 000 kilometres 22 000 mi above Earth five days after it was launched after three orbit raising manoeuvres from ISRO s Master Control Facility at Hassan in Karnataka 14 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 15 All of the on board transponders were switched on successfully on September 18 2013 16 Capability editRukmini 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 17 Replacement editThe Indian Navy placed an order for GSAT 7R on June 11 2019 GSAT 7R is expected to eventually replace GSAT 7 18 See also edit nbsp Spaceflight portal Indian military satellites GSAT 7A GSAT Indian National Satellite System List of Indian satellitesReferences edit Peat Chris 7 November 2013 GSAT 7 Orbit Heavens Above Retrieved 9 November 2013 Defence News Indian military satellite put into Earth s orbit Archived from the original on 2013 09 04 Retrieved 2013 09 04 http articles timesofindia indiatimes com 2013 08 30 india 41617825 1 advanced communication satellite gslv gsat 7 Archived 2013 09 01 at the Wayback Machine INSAT 4 series satellite launches rediff com Retrieved 2012 04 12 GSAT 7 to boost India s military capabilities The Times of India 30 August 2013 Retrieved 4 September 2013 First naval satellite may be launched this year Deccan Herald March 1 2013 Retrieved March 13 2013 GSAT 7 INSAT 4F India s military communication satellite Indian Navy July 23 2012 Retrieved July 23 2012 What is GSAT 7 Rukmini The Indian Express 2017 07 05 Retrieved 2021 11 13 Ministry of Defence Demands for Grants 2010 2011 PDF The cost of the Project as per Memorandum of Understanding signed with ISRO is Rs 950 crores SALIENT FEATURES OF GSAT 7 2017 08 20 Archived from the original on 2017 08 20 Retrieved 2021 11 13 India s first defence satellite GSAT 7 launched successfully India News Times of India The Times of India 30 August 2013 GSLV F11 successfully launches GSAT 7A pib gov in Retrieved 2021 11 13 12 Missions 12 Months ISRO s Mega Plan For 2018 Revealed Details Here NDTV com NDTV April 16 2018 Retrieved July 1 2018 India s Advanced Communication Satellite GSAT 7 Launched Successfully ISRO 2013 08 30 Archived from the original on 2013 12 17 Retrieved 2013 08 30 India s first military satellite GSAT 7 put into earth s orbit NDTV 4 September 2013 Retrieved 4 September 2013 Indian military satellite put into earth s orbit Indistan News National Political and States News Indistannews com Archived from the original on 2013 09 21 Retrieved 2013 09 04 GSAT 7 Transponders Successfully Switched ON Indian Space Research Organisation September 18 2013 Archived from the original on October 17 2013 Retrieved October 15 2013 Straits of Malacca Indian Navy joins search for missing Malaysian plane in the Malacca Straits India News Times of India The Times of India 11 March 2014 Pubby Manu 2019 07 18 Navy to buy Rs 1 589 crore satellite from ISRO The Economic Times Retrieved 2019 07 19 External links editISRO GSAT 7 Ariane 5 VA215 Mission Profile PDF Arianespace Archived from the original PDF on 2013 11 02 Retrieved from https en wikipedia org w index php title GSAT 7 amp oldid 1141995502, wikipedia, wiki, book, books, library,
