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4mo ago

ISRO’s PSLV-C62 Suffers Third-Stage Anomaly, Mission Fails to Reach Orbit

A Failure Analysis Committee is reviewing a late–third-stage roll disturbance, the second such problem in eight months that renews scrutiny of PSLV’s reliability.

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Overview

  • The rocket lifted off at 10:18 IST from Sriharikota in the PSLV-DL configuration carrying EOS-N1 (Anvesha) and 15 co-passenger satellites on an NSIL commercial mission.
  • ISRO reported nominal performance until near the end of the third stage, when increased roll rates led to a deviation from the planned flight path.
  • The vehicle did not reach the intended Sun-synchronous orbit, and multiple outlets report that all 16 payloads were lost after they were not deployed as planned.
  • Planned post-separation activities, including the Kestrel Initial Demonstrator re-entry splashdown in the South Pacific, did not occur.
  • The failure echoes a third-stage issue on PSLV-C61 in May 2025 despite prior corrective actions, sharpening focus on the PS3 solid motor and potential commercial repercussions.