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{{Use dmy dates|date=December 2020}}
{{Use dmy dates|date=December 2020}}
{{Infobox spaceflight
{{Infobox spaceflight
| name             = GSAT-7R
| name               = GSAT-7R
| image             =  
| image             = LVM3-M5, CMS-03 — Fully integrated launch vehicle being transferred from VAB to SLP 05.webp
| image_caption     =
| image_caption     = LVM3-M5 equipped with GSAT-7R, being transferred to the Second Launch Pad
| image_size       = 290px
| image_size         = 290px
 
| mission_type       = [[Communications satellite|Communication]]
| mission_type     = [[Communications satellite|Communication]]
| operator           = [[Indian Navy]]
| operator         = [[Indian Navy]]
| COSPAR_ID         =  
| COSPAR_ID         =  
| SATCAT             =
| SATCAT            =  
| website           = [https://www.isro.gov.in/LVM3_M5_CMS_03_MISSION.html CMS-03]
| website           =  
| mission_duration  = Planned: 15 years<ref name=":6" /><br> Elapsed: {{time interval|2 November 2025|show=ymd|sep=,}}
| mission_duration =  
| spacecraft_bus    =
| manufacturer      = [[U. R. Rao Satellite Centre]]<ref name=":6" />
| dry_mass           =  
| launch_mass        = {{convert|4410|kg}}
| power              = <!-- [[watt]]s -->
| launch_date        = {{start-date|2 November 2025, 11:56|timezone=yes}}{{nbsp}}UTC
| launch_rocket      = [[LVM3|LVM3-M5]]
| launch_site        = [[Satish Dhawan Space Centre]], [[Sriharikota]]
| launch_contractor  =
| entered_service    = 2 November 2025<ref name=":6" />
| disposal_type      =
| deactivated        =
| orbit_reference    = [[Geocentric orbit]]
| orbit_regime      = [[Geostationary orbit]]
| orbit_longitude    =
| orbit_slot        =
| apsis              = gee
| trans_band        =
| trans_frequency    =
| trans_bandwidth    =
| trans_capacity    =
| trans_coverage    =
| trans_TWTA        =
| trans_EIRP        =
| trans_HPBW        =
| programme          = [[GSAT|CMS Series]]
| previous_mission  = [[GSAT-24|CMS-02]]
| next_mission      =
| programme2        = [[GSAT]]
| previous_mission2 = [[GSAT-20]]
| next_mission2      = [[GSAT-32]]
}}


| spacecraft_bus    =
'''GSAT-7R''' (also known as '''CMS-03''') is a multi-band communication satellite developed by [[ISRO]] for the [[Indian Navy]]. The satellite is meant to replace the existing and operational [[GSAT-7]].
| manufacturer      = [[Indian Space Research Organisation|U R Rao Satellite Centre]]
| dry_mass          =
| launch_mass      =
| power            =


| launch_date      = 2023
== Satellite ==
| launch_rocket    = [[GSLV|LVM3]]
The satellite, weighing {{convert|4410|kg}},<ref name=":5">{{Cite news |agency=PTI |date=2025-11-01 |title=Countdown begins for launch of ISRO’s heaviest communication satellite CMS-03 for military on November 2 |url=https://www.thehindu.com/sci-tech/science/countdown-begins-for-launch-of-isros-heaviest-communication-satellite-cms-03-for-military-on-november-2/article70230682.ece |access-date=2025-11-02 |work=The Hindu |language=en-IN |issn=0971-751X}}</ref><ref name=":6">{{Cite news |date=2025-11-03 |title=Gsat-7R: Isro launches heaviest communication satellite from India, Navy set to get boost |url=https://timesofindia.indiatimes.com/india/gsat-7r-isro-launches-heaviest-commsat-from-india-navy-set-to-get-boost/articleshow/125044028.cms |access-date=2025-11-03 |work=The Times of India |issn=0971-8257}}</ref> is meant to transmit voice, video and data among the naval ships, submarines, aircraft and Maritime Operation Centres<ref name=":6" /> of the [[Indian Navy]] deployed across the [[Indian Ocean]] Region, covering up to 2,000 km from India's coastline.<ref name=":1">{{Cite web |last=Singh |first=Abhinav |date=2025-10-21 |title=CMS-02 satellite launch likely in November. Why this is a major upgrade for Indian Navy's operations, maritime defence |url=https://www.theweek.in/news/defence/2025/10/21/cms-02-satellite-launch-likely-in-november-why-this-is-a-major-upgrade-for-indian-navys-operations-maritime-defence.html |access-date=2025-10-22 |website=The Week |language=en}}</ref>
| launch_site      =  
| launch_contractor =  


| entered_service  =
The satellite employs advanced payloads in multiple frequency bands, including [[UHF]], [[S band|S]], [[C band (IEEE)|C]] and [[Ku band|Ku]] bands.<ref name=":1" /> It is also equipped with indigenous components like a 1,200 litre propulsion tank and collapsible antenna systems. It also has a planned lifespan of 15 years.<ref name=":6" />
| disposal_type    =  
| deactivated      =  


| orbit_reference  = [[Geocentric orbit]]
The contract for the {{INRConvert|1589|c|lk=on|year=2019|mode=historical}} satellite project was signed in 11 June 2019 between the Indian Navy and the [[ISRO]].<ref name=":2">{{Cite news |last=Pubby |first=Manu |date=2019-07-18 |title=Navy to buy Rs 1,589 crore satellite from ISRO |url=https://economictimes.indiatimes.com/news/defence/navy-to-buy-rs-1589-crore-satellite-from-isro/articleshow/70283927.cms |url-status=live |archive-url=https://web.archive.org/web/20251027093048/https://m.economictimes.com/news/defence/navy-to-buy-rs-1589-crore-satellite-from-isro/amp_articleshow/70283927.cms |archive-date=2025-10-27 |access-date=2025-10-27 |work=The Economic Times |issn=0013-0389}}</ref><ref name=":3">{{Cite news |date=2019-07-21 |title=Isro to build 2nd dedicated satellite for Navy to interlink warships, aircraft |url=https://timesofindia.indiatimes.com/india/isro-to-build-2nd-dedicated-satellite-for-navy-to-interlink-warships-aircraft/articleshow/70310935.cms |access-date=2025-10-27 |work=The Times of India |issn=0971-8257}}</ref>
| orbit_regime      = [[Geostationary orbit]]
| orbit_longitude  =
| orbit_slot        =  
| apsis            = gee


| trans_band        =  
== History ==
| trans_frequency  =  
During the time of contract signing in 2019, the projected launch date of the satellite was expected between 2020<ref name=":2" /> and 2022.<ref name=":3" />By August 2025, the delivery timeline had slipped by few years to November 2025.<ref>{{Cite web |date=2025-08-20 |title=ISRO to Launch Spy Satellites GSAT-7R and TDS by Year-End, Strengthening Indian Navy’s Communication and Surveillance Capabilities |url=https://indianmasterminds.com/news/isro-to-launch-spy-satellites-gsat-7r-and-tds-by-year-end-strengthening-indian-navys-communication-and-surveillance-capabilities-138482/ |access-date=2025-09-12 |website=indianmasterminds.com}}</ref><ref>{{Cite web |last=Ray |first=Kalyan |date=2025-09-11 |title=Indian Navy to operationalise new info centre in Gurugram today |url=https://www.deccanherald.com/india/indian-navy-to-operationalise-new-info-centre-in-gurugram-today-3723886 |access-date=2025-09-12 |website=Deccan Herald |language=en}}</ref> By 23 October, the launch date was scheduled on 2 November.<ref>{{Cite news |date=2025-10-23 |title=LVM-3 to launch CMS-03 on November 2; Nisar to begin operations soon |url=https://timesofindia.indiatimes.com/science/lvm-3-to-launch-cms-03-on-november-2-nisar-to-begin-operations-soon/articleshow/124758812.cms |access-date=2025-11-02 |work=The Times of India |issn=0971-8257}}</ref> The vehicle performance of LMV3-M5 had been enhanced by 10% to accommodate the CMS-03 satellite which is heavier than its payload capacity of 4 tonnes for GTO orbits.<ref name=":6" />
| trans_bandwidth  =  
| trans_capacity    =  
| trans_coverage    =  
| trans_TWTA        =  
| trans_EIRP        =  
| trans_HPBW        =  


| programme        = [[GSAT]]
The satellite assembly and integration with launch vehicle has been completed by early October 2025. The launch vehicle was moved to the launchpad on 26 October and pre-launch procedures were initiated thereafter. It is the heaviest satellite to be launched to the [[Geostationary Transfer Orbit]] orbit from India till date.<ref name=":0">{{Cite news |date=2025-10-26 |title=LVM-3, set to launch satellite for Navy on November 2, moves to launchpad |url=https://timesofindia.indiatimes.com/india/lvm-3-set-to-launch-satellite-for-navy-on-november-2-moves-to-launchpad/articleshow/124829075.cms |access-date=2025-10-27 |work=The Times of India |issn=0971-8257}}</ref><ref name=":4">{{Cite news |date=2025-10-26 |title=Satellite for armed forces to be launched next week |url=https://www.thehindu.com/sci-tech/science/isro-to-launch-military-communications-satellite-cms-03-on-november-2/article70205060.ece |access-date=2025-10-27 |work=The Hindu |language=en-IN |issn=0971-751X}}</ref> A pre flight inspection fixed problems in the fuel control systems that plagued the [[NVS-02]] satellite which used a similar spacecraft bus.<ref>{{Cite web |last=Science Desk |first=India Today |date=2026-02-25 |title=A year after NVS-02 satellite's failure, Isro explains what went wrong in space |url=https://www.indiatoday.in/science/story/nvs-02-satellite-failure-reason-isro-explains-lvm-3-mission-2874191-2026-02-25 |access-date=2026-02-25 |website=India Today |language=en}}</ref><ref>{{Cite web |title=NVS-02 Spacecraft: On-Orbit Observations and Apex Committee Recommendations |url=https://www.isro.gov.in/NVS-02-Spacecraft-On-Orbit-Observations.html |access-date=2026-02-25 |website=www.isro.gov.in}}</ref>
| previous_mission  = [[GSAT-20]]
| next_mission      = [[GSAT-7C]]
}}


'''GSAT-7R''' is a planned Indian military communication satellite for the [[Indian Navy]] to replace [[GSAT-7]]. The satellite is projected to cost [[Indian rupee|₹]]1,589 [[Crore|crores]] (US$225.5 million). It is expected to be launched by 2023.<ref>{{cite web|url=https://m-economictimes-com.cdn.ampproject.org/v/s/m.economictimes.com/news/defence/navy-to-buy-rs-1589-crore-satellite-from-isro/amp_articleshow/70283927.cms?usqp=mq331AQCKAE=&amp_js_v=0.1|title=Indian Navy: Navy to buy Rs 1589 crore satellite from ISRO|website=m-economictimes-com.cdn.ampproject.org|access-date=2020-01-19}}</ref><ref>{{cite web |url=https://timesofindia.indiatimes.com/india/isro-to-build-2nd-dedicated-satellite-for-navy-to-interlink-warships-aircraft/articleshow/70310935.cms|title=Isro to build 2nd dedicated satellite for Navy to interlink warships, aircraft|work=India News|date=July 21, 2019|first=Surendra|last=Singh|publisher=The Times of India|access-date=2020-01-19}}</ref><ref>{{cite web|url=https://www-moneycontrol-com.cdn.ampproject.org/v/s/www.moneycontrol.com/news/technology/isro-to-launch-satellite-worth-rs-1589-cr-for-indian-navy-report-4223851.html/amp?usqp=mq331AQCKAE=&amp_js_v=0.1|title=ISRO to launch satellite worth Rs 1589 cr for Indian Navy: Report|website=moneycontrol-com.cdn.ampproject.org|access-date=2020-01-19}}</ref>
On 2 November 2025, at 5:26 pm [[Indian Standard Time|IST]],<ref name=":5" /> ISRO successfully placed the CMS-03 satellite into the desired orbit through the LVM3-M5 rocket from the Second Launch Pad<ref name=":6" /> of the [[Satish Dhawan Space Centre]], [[Sriharikota]].<ref>{{Cite news |agency=PTI |date=2025-11-02 |title=ISRO scripts history as ‘Bahubali’ rocket injects heaviest satellite in orbit |url=https://www.thehindu.com/sci-tech/science/isros-lvm3-m5-rocket-with-heaviest-communication-satellite-lifts-off/article70232624.ece |access-date=2025-11-02 |work=The Hindu |language=en-IN |issn=0971-751X}}</ref><ref>{{Cite web |date=2025-11-02 |title=ISRO Rocket Launch Today Live Updates: India’s heaviest communication satellite CMS-03 successfully placed in intended orbit, mission successfully accomplished |url=https://indianexpress.com/article/india/isro-rocket-launch-today-live-updates-heaviest-communication-satellite-cms-03-liftoff-sriharikota-lvm3-10341199/ |access-date=2025-11-02 |website=The Indian Express |language=en}}</ref> The mission featured an experiment, re-ignition of the cryogenic upper stage. The satellite was separated from the launch vehicle at around 16 minutes in sub-GTO orbit. from launch with a [[perigee]] of 26,700 km.<ref name=":6" />


== See also ==
== See also ==
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[[Category:GSAT satellites]]
[[Category:GSAT satellites]]
[[Category:2023 in spaceflight]]
[[Category:2025 in spaceflight]]
[[Category:2023 in India]]
[[Category:2025 in India]]
 


{{Communications-satellite-stub}}
{{Communications-satellite-stub}}

Latest revision as of 17:15, 25 February 2026


GSAT-7R
Error creating thumbnail: File with dimensions greater than 12.5 MP
LVM3-M5 equipped with GSAT-7R, being transferred to the Second Launch Pad
Mission typeCommunication
OperatorIndian Navy
COSPAR ID{{#property:P247}}
WebsiteCMS-03
Mission durationPlanned: 15 years[1]
Elapsed: 9 months, 3 days
Spacecraft properties
ManufacturerU. R. Rao Satellite Centre[1]
Launch mass4,410 kilograms (9,720 lb)
Start of mission
Launch date2 November 2025, 11:56 (2025-11-02UTC11:56Z) UTC
RocketLVM3-M5
Launch siteSatish Dhawan Space Centre, Sriharikota
Entered service2 November 2025[1]
Orbital parameters
Reference systemGeocentric orbit
RegimeGeostationary orbit
← CMS-02
 
← GSAT-20
GSAT-32 →

GSAT-7R (also known as CMS-03) is a multi-band communication satellite developed by ISRO for the Indian Navy. The satellite is meant to replace the existing and operational GSAT-7.

Satellite[edit | edit source]

The satellite, weighing 4,410 kilograms (9,720 lb),[2][1] is meant to transmit voice, video and data among the naval ships, submarines, aircraft and Maritime Operation Centres[1] of the Indian Navy deployed across the Indian Ocean Region, covering up to 2,000 km from India's coastline.[3]

The satellite employs advanced payloads in multiple frequency bands, including UHF, S, C and Ku bands.[3] It is also equipped with indigenous components like a 1,200 litre propulsion tank and collapsible antenna systems. It also has a planned lifespan of 15 years.[1]

The contract for the ₹1,589 crore (US$225.65 million) satellite project was signed in 11 June 2019 between the Indian Navy and the ISRO.[4][5]

History[edit | edit source]

During the time of contract signing in 2019, the projected launch date of the satellite was expected between 2020[4] and 2022.[5]By August 2025, the delivery timeline had slipped by few years to November 2025.[6][7] By 23 October, the launch date was scheduled on 2 November.[8] The vehicle performance of LMV3-M5 had been enhanced by 10% to accommodate the CMS-03 satellite which is heavier than its payload capacity of 4 tonnes for GTO orbits.[1]

The satellite assembly and integration with launch vehicle has been completed by early October 2025. The launch vehicle was moved to the launchpad on 26 October and pre-launch procedures were initiated thereafter. It is the heaviest satellite to be launched to the Geostationary Transfer Orbit orbit from India till date.[9][10] A pre flight inspection fixed problems in the fuel control systems that plagued the NVS-02 satellite which used a similar spacecraft bus.[11][12]

On 2 November 2025, at 5:26 pm IST,[2] ISRO successfully placed the CMS-03 satellite into the desired orbit through the LVM3-M5 rocket from the Second Launch Pad[1] of the Satish Dhawan Space Centre, Sriharikota.[13][14] The mission featured an experiment, re-ignition of the cryogenic upper stage. The satellite was separated from the launch vehicle at around 16 minutes in sub-GTO orbit. from launch with a perigee of 26,700 km.[1]

See also[edit | edit source]

References[edit | edit source]

  1. ↑ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 "Gsat-7R: Isro launches heaviest communication satellite from India, Navy set to get boost". The Times of India. 3 November 2025. ISSN 0971-8257. Retrieved 3 November 2025.
  2. ↑ 2.0 2.1 "Countdown begins for launch of ISRO's heaviest communication satellite CMS-03 for military on November 2". The Hindu. PTI. 1 November 2025. ISSN 0971-751X. Retrieved 2 November 2025.
  3. ↑ 3.0 3.1 Singh, Abhinav (21 October 2025). "CMS-02 satellite launch likely in November. Why this is a major upgrade for Indian Navy's operations, maritime defence". The Week. Retrieved 22 October 2025.
  4. ↑ 4.0 4.1 Pubby, Manu (18 July 2019). "Navy to buy Rs 1,589 crore satellite from ISRO". The Economic Times. ISSN 0013-0389. Archived from the original on 27 October 2025. Retrieved 27 October 2025.
  5. ↑ 5.0 5.1 "Isro to build 2nd dedicated satellite for Navy to interlink warships, aircraft". The Times of India. 21 July 2019. ISSN 0971-8257. Retrieved 27 October 2025.
  6. ↑ "ISRO to Launch Spy Satellites GSAT-7R and TDS by Year-End, Strengthening Indian Navy's Communication and Surveillance Capabilities". indianmasterminds.com. 20 August 2025. Retrieved 12 September 2025.
  7. ↑ Ray, Kalyan (11 September 2025). "Indian Navy to operationalise new info centre in Gurugram today". Deccan Herald. Retrieved 12 September 2025.
  8. ↑ "LVM-3 to launch CMS-03 on November 2; Nisar to begin operations soon". The Times of India. 23 October 2025. ISSN 0971-8257. Retrieved 2 November 2025.
  9. ↑ "LVM-3, set to launch satellite for Navy on November 2, moves to launchpad". The Times of India. 26 October 2025. ISSN 0971-8257. Retrieved 27 October 2025.
  10. ↑ "Satellite for armed forces to be launched next week". The Hindu. 26 October 2025. ISSN 0971-751X. Retrieved 27 October 2025.
  11. ↑ Science Desk, India Today (25 February 2026). "A year after NVS-02 satellite's failure, Isro explains what went wrong in space". India Today. Retrieved 25 February 2026.
  12. ↑ "NVS-02 Spacecraft: On-Orbit Observations and Apex Committee Recommendations". www.isro.gov.in. Retrieved 25 February 2026.
  13. ↑ "ISRO scripts history as 'Bahubali' rocket injects heaviest satellite in orbit". The Hindu. PTI. 2 November 2025. ISSN 0971-751X. Retrieved 2 November 2025.
  14. ↑ "ISRO Rocket Launch Today Live Updates: India's heaviest communication satellite CMS-03 successfully placed in intended orbit, mission successfully accomplished". The Indian Express. 2 November 2025. Retrieved 2 November 2025.


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