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ISRO’s LVM3 Launches Heaviest Indian Communication Satellite to GTO, Tests Cryogenic Reignition

The multi-band CMS-03 spacecraft is built to expand coverage for India with wide oceanic reach over a planned 15-year service life.

Overview

  • LVM3-M5 lifted off from Sriharikota and deployed the roughly 4,410 kg CMS-03 into geosynchronous transfer orbit.
  • ISRO reoriented and reignited the C25 cryogenic stage after satellite separation to gather data that enables future mission flexibility.
  • CMS-03 is intended to deliver high-capacity communications for remote areas, maritime users and defense, strengthening Indian Navy connectivity.
  • The mission was the rocket’s fifth operational flight, underscoring LVM3’s status as India’s heavy-lift launcher proven by Chandrayaan-3.
  • ISRO said strong winds and high humidity posed challenges during the countdown, yet the team executed the launch on schedule.