GSAT-7R

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GSAT-7R
LVM3-M5, CMS-03 -- Fully integrated launch vehicle being transferred from VAB to SLP 05.webp
LVM3-M5 equipped with GSAT-7R, being transferred to the Second Launch Pad
Mission type Communication
Operator Indian Navy
COSPAR ID 2025-249B OOjs UI icon edit-ltr-progressive.svg
SATCAT no. 66311 OOjs UI icon edit-ltr-progressive.svg
Website CMS-03
Mission durationPlanned: 15 years [1]
Elapsed: 11 days
Spacecraft properties
Manufacturer U. 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
Rocket LVM3-M5
Launch site Satish Dhawan Space Centre, Sriharikota
Entered service2 November 2025 [1]
Orbital parameters
Reference system Geocentric orbit
Regime Geostationary 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.

Contents

Satellite

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]

Launch

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 satellite assembly and integration with launch vehicle has been completed. 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. Additionally, this is the first launch of LVM3, only after its July 2023 launch of Chandrayaan-3. [9] [10]

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. [11] [12] 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]

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]

See also

References

  1. 1 2 3 4 5 6 7 8 9 "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. 1 2 "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. 1 2 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. 1 2 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. 1 2 "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. ↑ "ISRO scripts history as 'Bahubali' rocket injects heaviest satellite in orbit". The Hindu. PTI. 2 November 2025. ISSN   0971-751X . Retrieved 2 November 2025.
  12. ↑ "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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