This article is about the Indian telecommunications and broadcasting satellites. For the navigation satellites, see Galileo navigation system. For the algorithm for propositional Boolean satisfiability, see WalkSAT. For the Taiwanese university entrance exam, see General Scholastic Ability Test.
The GSAT (Geosynchronous Satellite)[1]satellites are India's indigenously developed communications satellites, used for digital audio, data and video broadcasting. As of 5 December 2018, 20 GSAT satellites of ISRO have been launched out of which 14 satellites are in service.
GSAT
The GSAT-7A, a military communications satellite, in deployed configuration
The GSAT series of geosynchronous satellites is a system developed by ISRO with an objective to make India self-reliant in broadcasting services. The repertoire of 10 GSAT satellites, a total of 168 transponders (out of which 95 transponders are leased out to provide services to the broadcasters) in the C, Extended C and Ku-bands provides services to telecommunications, television broadcasting, weather forecasting, disaster warning and search and rescue operations.
List of active satellites
This is a list of GSAT current satellites with their outcome.
A multi-media mobile satellite system; will offer a Satellite Digital Multimedia Broadcasting (S-DMB) service, via mobile phones and mobile video/audio receivers for vehicles; Can also be utilized for strategic and social applications.
According to defense experts, to enable the Indian Navy to acquire blue water capabilities and need not depend on foreign satellites like Inmarsat, which provide communication services to its ships.
To augment the capacity in the INSAT system; The GAGAN payload provides the Satellite Based Augmentation System (SBAS), through which the accuracy of the positioning information obtained from the IRNSS Satellites is improved by a network of ground-based receivers and made available to the users in the country through the geostationary satellites.
Carried GAGAN navigation payload, a regional navigational services by NAVIC, a navigational system developed by India, that provides navigational services to the security forces and air traffic control organizations.
Replacement of the INSAT-3B; to provide services like tele-education, tele-medicine, disaster management support and satellite internet access. Only GSAT satellite to be launched by PSLV.
The communication payloads provide a combination of total 48 transponders across the three frequency bands (24-Normal C, 12-Extended-C and 12 in Ku-band) along with a Ku-band beacon transmitter, which is the highest for an Indian satellite. The spacecraft will be Co-located with GSAT-8 at 55 deg E.
Payload includes 24 C-band, 2 lower C-band, 12 upper C-band, 2 CxS (C-band up/S-band down), and 1 SxC (S-band up/C-band down) transponders as well as a dedicated transponder for data relay (DRT) and search-and-rescue (SAR) services.
Built exclusively to serve the educational sector. It was mainly intended to meet the demand for an interactive satellite-based distance education system for the country.
Communication with the satellite was lost after the second orbit raising manoeuvre. Efforts are on to re-establish link but at this point it remains incommunicado.[20]
^. isro.org. Archived from the original on 11 February 2014.
^"GSAT 7". NASA. 16 August 2013. Retrieved 6 January 2014.
^"GSAT 8". NASA. 16 August 2013. Retrieved 6 January 2014.
^"GSAT 10". NASA. 16 August 2013. Retrieved 6 January 2014.
^"GSAT 12". NASA. 16 August 2013. Retrieved 6 January 2014.
^. Archived from the original on 11 December 2014. Retrieved 7 December 2014.
^ ab(PDF). Indian Space Research Organisation. December 2015. p. 28. Archived from the original (PDF) on 2016-07-05.
^"GSAT-18 launched successfully on board Ariane-5 from Kourou in French Guiana". 2016-10-06. Retrieved 2016-10-06.
^"Now, ISRO successfully puts GSAT-19 satellite in orbit with GSLV Mk-III". The New Indian Express. Retrieved 5 June 2017.
^ISRO successfully launches the GSAT-29 satellite from Satish Dhawan Space Center in Sriharikota on Wednesday. Bangalore Mirror. 14 November 2018.
^"India's communication satellite GSAT-30 launched successfully". ISRO. Retrieved 17 January 2020.
^"India's 40th Communication Satellite, GSAT-31, Launched". NDTV. Retrieved 6 February 2019.
^"Military communication satellite for Indian Army approved". Deccen Herald. Retrieved 22 March 2022.
^"Defence ministry clears proposal for GSAT-7C satellite for IAF: A look at other military satellites in India". Firstpost. Retrieved 24 November 2021.
^"Navy to buy Rs 1,589 crore satellite from ISRO". Economic Times. Retrieved 18 July 2019.
^ abcdKumar, Chethan (5 October 2021). "Space PSU NSIL to launch 4 more demand-driven communication satellites". The Times of India. Retrieved 8 October 2021.
^"GSAT 1". NASA. 16 August 2013. Retrieved 6 January 2014.
^"GSAT 2". NASA. 16 August 2013. Retrieved 6 January 2014.
^"GSat 5 (Insat 4D)". Gunter's Space Page. 29 March 2017. Retrieved 22 May 2017.
^"The second orbit raising operation of GSAT-6A satellite has been successfully carried out by LAM Engine firing for about 53 minutes on March 31, 2018 in the morning. - ISRO".
External links
February 24, 2023
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This article is about the Indian telecommunications and broadcasting satellites For the navigation satellites see Galileo navigation system For the algorithm for propositional Boolean satisfiability see WalkSAT For the Taiwanese university entrance exam see General Scholastic Ability Test The GSAT Geosynchronous Satellite 1 satellites are India s indigenously developed communications satellites used for digital audio data and video broadcasting As of 5 December 2018 20 GSAT satellites of ISRO have been launched out of which 14 satellites are in service GSATThe GSAT 7A a military communications satellite in deployed configurationManufacturerISROCountry of originIndiaOperatorINSATApplicationsCommunicationsSpecificationsRegimeGeostationary orbitProductionStatusIn serviceLaunched20Operational14Retired6 Contents 1 History 2 List of active satellites 3 List of upcoming GSAT satellites 4 List of defunct satellites 5 See also 6 References 7 External linksHistory EditThe GSAT series of geosynchronous satellites is a system developed by ISRO with an objective to make India self reliant in broadcasting services The repertoire of 10 GSAT satellites a total of 168 transponders out of which 95 transponders are leased out to provide services to the broadcasters in the C Extended C and Ku bands provides services to telecommunications television broadcasting weather forecasting disaster warning and search and rescue operations List of active satellites EditThis is a list of GSAT current satellites with their outcome GSAT Satellites In Service Satellite Longitude Date of launch Launch vehicle Lift off mass Status NotesGSAT series INSAT series Known asGSAT 6 INSAT 4E 83 East 27 August 2015 GSLV Mk II D6 2 132 kg 4 700 lb In service A multi media mobile satellite system will offer a Satellite Digital Multimedia Broadcasting S DMB service via mobile phones and mobile video audio receivers for vehicles Can also be utilized for strategic and social applications GSAT 7 INSAT 4F 2 Rukmani 74 East 30 August 2013 Ariane 5 ECA VA 215 2 650 kg 5 840 lb In service According to defense experts to enable the Indian Navy to acquire blue water capabilities and need not depend on foreign satellites like Inmarsat which provide communication services to its ships GSAT 7A Angry Bird 19 December 2018 GSLV Mk II F11 2 250 kg 4 960 lb In service GSAT 7A is an advanced military communications satellite meant exclusively for the Indian Air Force GSAT 8 INSAT 4G GramSat 8 3 55 East 20 May 2011 Ariane 5 ECA VA 202 3 093 kg 6 819 lb In service To augment the capacity in the INSAT system The GAGAN payload provides the Satellite Based Augmentation System SBAS through which the accuracy of the positioning information obtained from the IRNSS Satellites is improved by a network of ground based receivers and made available to the users in the country through the geostationary satellites GSAT 9 South Asia Satellite 48 East 5 May 2017 GSLV Mk II F09 2 330 kg 5 140 lb In service Carried GAGAN navigation payload a regional navigational services by NAVIC a navigational system developed by India that provides navigational services to the security forces and air traffic control organizations GSAT 10 83 East 29 September 2012 4 Ariane 5 ECA VA 209 3 435 kg 7 573 lb In service To augment telecommunication Direct To Home and radio navigation services GSAT 11 74 East 4 December 2018 Ariane 5 ECA VA 246 5854 kg 12 906 lb In service Aimed at providing advanced telecom and DTH services in the country Heaviest satellite build by India GSAT 12 GramSat 12 5 83 East 15 July 2011 PSLV XL C17 1 412 kg 3 113 lb In service Replacement of the INSAT 3B to provide services like tele education tele medicine disaster management support and satellite internet access Only GSAT satellite to be launched by PSLV GSAT 14 75 East 5 January 2014 GSLV Mk II D5 1 982 kg 4 370 lb In service To replace the GSAT 3 satellite launched by a GSLV Mk II which incorporated an Indian built cryogenic engine on the third stage GSAT 15 93 5 East 10 November 2015 Ariane 5 ECA VA 227 3 100 kg 6 800 lb In service Similar to GSAT 10 satellite to augment the capacity of transponders to provide more bandwidth for Direct to Home television and VSAT services GSAT 16 55 East 6 December 2014 Ariane 5 ECA VA 221 3 150 kg 6 940 lb In service 6 The communication payloads provide a combination of total 48 transponders across the three frequency bands 24 Normal C 12 Extended C and 12 in Ku band along with a Ku band beacon transmitter which is the highest for an Indian satellite The spacecraft will be Co located with GSAT 8 at 55 deg E GSAT 17 93 5 East 28 June 2017 Ariane 5 ECA VA 238 3 477 kg 7 551 lb In service 7 Payload includes 24 C band 2 lower C band 12 upper C band 2 CxS C band up S band down and 1 SxC S band up C band down transponders as well as a dedicated transponder for data relay DRT and search and rescue SAR services GSAT 18 74 East 5 October 2016 Ariane 5 ECA VA 231 3 404 kg 7 505 lb In service 7 to provide services in Normal C band Upper Extended C band and Ku bands of the frequency spectrum 8 GSAT 19 48 East 5 June 2017 GSLV Mk III D1 3 136 kg 6 914 lb In service 9 Maiden developmental flight of GSLV Mark IIIGSAT 24 CMS 02 48 East 22 June 2022 Ariane 5 ECA VA 257 4 181 kg 9 218 lb In ServiceGSAT 29 55 East 14 November 2018 GSLV Mk III D2 3 423 kg 7 546 lb In service 10 Second developmental flight of GSLV Mark IIIGSAT 30 83 East 17 January 2020 Ariane 5 ECA VA 251 3 547 kg 7 820 lb In Service 11 Replacement satellite for INSAT 4AGSAT 31 48 East 6 February 2019 Ariane 5 ECA VA 247 2 535 kg 5 589 lb In Service 12 List of upcoming GSAT satellites EditGSAT Satellites Planned Satellite Longitude Date of launch Launch vehicle Lift off mass Status NotesGSAT series INSAT series Known asGSAT 7B 20XX GSLV Mk II F Planned Military communication satellite for Indian Army 13 GSAT 7C 20XX GSLV Mk II F Planned Military communication satellite for Indian Air Force 14 GSAT 7R 20XX GSLV Mk II F Planned Replacement for GSAT 7 Rukmini for Indian Navy 15 GSAT 20 2023 GSLV Mk III 5 300 kg 11 684 lb Planned 16 GSAT 22 2023 GSLV Mk III Planned 16 GSAT 23 2023 GSLV Mk III Planned 16 GSAT 32 2023 GSLV Mk II Planned 16 Replacement of GSAT 6A List of defunct satellites EditGSAT satellites decommissioned failed cancelled Satellite Longitude Date of launch Launch vehicle Lift off mass Status NotesGSAT series INSAT series Known asGSAT 1 GramSat 1 17 73 West 2000 99 West 2000 2006 76 85 West 2006 2009 18 April 2001 GSLV Mk I D1 1 540 kg 3 400 lb Failed to orbit Experimental satellite Envisaged as a technology demonstrator Failed to achieve its target orbit which prevented it from fulfilling its primary communications mission GSAT 2 GramSat 2 18 47 95 East 8 May 2003 GSLV Mk I D2 1 825 kg 4 023 lb Decommissioned Experimental satellite Experimental communication satellite on board the second developmental test flight of India s GSLV GSAT 3 EduSat 74 East 20 September 2004 GSLV Mk I F01 1 950 kg 4 300 lb Decommissioned 30 September 2010 Built exclusively to serve the educational sector It was mainly intended to meet the demand for an interactive satellite based distance education system for the country GSAT 4 HealthSat 82 East 15 April 2010 GSLV Mk II D3 2 220 kg 4 890 lb Failed to orbit Experimental communication and navigation satellite maiden flight of the GSLV Mk II rocket GSAT 5 INSAT 4D 19 GSLV Mk II 2 250 kg 4 960 lb Cancelled Rebuilt as the GSAT 5P GSAT 5P 55 East 25 December 2010 GSLV Mk I F06 2 310 kg 5 090 lb Failed to orbit As a replacement for INSAT 3E GSAT 6A 29 March 2018 GSLV Mk II F08 2 140 kg 4 720 lb Communication lost Communication with the satellite was lost after the second orbit raising manoeuvre Efforts are on to re establish link but at this point it remains incommunicado 20 See also Edit Spaceflight portal India portalPolar Satellite Launch Vehicle PSLV Geosynchronous Satellite Launch Vehicle GSLV List of Indian satellites List of Satish Dhawan Space Centre launchesReferences Edit ISRO GeoStationary Satellites isro org Archived from the original on 11 February 2014 GSAT 7 NASA 16 August 2013 Retrieved 6 January 2014 GSAT 8 NASA 16 August 2013 Retrieved 6 January 2014 GSAT 10 NASA 16 August 2013 Retrieved 6 January 2014 GSAT 12 NASA 16 August 2013 Retrieved 6 January 2014 Ariane 5 delivers DIRECTV 14 and GSAT 16 to orbit on Arianespace s latest mission success Archived from the original on 11 December 2014 Retrieved 7 December 2014 a b Annual Report 2015 2016 PDF Indian Space Research Organisation December 2015 p 28 Archived from the original PDF on 2016 07 05 GSAT 18 launched successfully on board Ariane 5 from Kourou in French Guiana 2016 10 06 Retrieved 2016 10 06 Now ISRO successfully puts GSAT 19 satellite in orbit with GSLV Mk III The New Indian Express Retrieved 5 June 2017 ISRO successfully launches the GSAT 29 satellite from Satish Dhawan Space Center in Sriharikota on Wednesday Bangalore Mirror 14 November 2018 India s communication satellite GSAT 30 launched successfully ISRO Retrieved 17 January 2020 India s 40th Communication Satellite GSAT 31 Launched NDTV Retrieved 6 February 2019 Military communication satellite for Indian Army approved Deccen Herald Retrieved 22 March 2022 Defence ministry clears proposal for GSAT 7C satellite for IAF A look at other military satellites in India Firstpost Retrieved 24 November 2021 Navy to buy Rs 1 589 crore satellite from ISRO Economic Times Retrieved 18 July 2019 a b c d Kumar Chethan 5 October 2021 Space PSU NSIL to launch 4 more demand driven communication satellites The Times of India Retrieved 8 October 2021 GSAT 1 NASA 16 August 2013 Retrieved 6 January 2014 GSAT 2 NASA 16 August 2013 Retrieved 6 January 2014 GSat 5 Insat 4D Gunter s Space Page 29 March 2017 Retrieved 22 May 2017 The second orbit raising operation of GSAT 6A satellite has been successfully carried out by LAM Engine firing for about 53 minutes on March 31 2018 in the morning ISRO External links EditISRO GeoStationary Satellites Retrieved from https en wikipedia org w index php title GSAT amp oldid 1130172619, wikipedia, wiki, book, books, library,
