GSLV-F19 and NVS-04 Launch Anticipated in 2027


Launch Schedule and Status


  • Launch Date: ISRO has not yet announced an official launch date or time for this mission. However, public launch listings and Indian press reports anticipate the launch will take place in 2027.

  • Recent Milestones: On November 5, 2026, ISRO successfully conducted a 200-second flight acceptance hot test of the cryogenic engine intended for the GSLV-F19 launch vehicle. The test took place at the ISRO Propulsion Complex in Mahendragiri, Tamil Nadu, and the main engine and gas generator ignited and performed as expected.

  • Next Steps: The tested cryogenic engine will now be integrated into the cryogenic upper stage of the GSLV-F19 rocket in preparation for the mission.

Mission Details

  • Launch Vehicle: Geosynchronous Satellite Launch Vehicle (GSLV-F19).

  • Payload: NVS-04 (also designated as IRNSS-1M).

  • Satellite Purpose: NVS-04 is the fourth satellite in ISRO's second-generation NVS series, designed to strengthen NavIC (Navigation with Indian Constellation), which is India's regional navigation satellite system for civilian and military use.

  • Key Features: Like other second-generation NavIC satellites, NVS-04 will carry an indigenously developed atomic clock and broadcast the civilian L1 band (which is commonly used by smartphone chipsets) in addition to the traditional L5 and S-band signals.

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