ISRO Attributes NVS-02 Satellite Orbit Failure to Loose Electrical Connection

Over a year after the NVS-02 navigation satellite failed to reach its intended circular orbit following its January 2025 launch, ISRO revealed that a likely cause was a loose electrical connection preventing the drive signal from reaching the pyro valve in the oxidizer line. This valve is essential for firing the engine to raise the orbit. An Apex Committee investigated the failure using telemetry and simulations, leading to recommendations that were applied in subsequent missions to improve system reliability.