Failure report of NPS-02 mission released, ISRO told why it failed…Now ‘foolproof’ plan made for future missions

Bengaluru. The Indian Space Research Organization (ISRO) on Wednesday released a detailed report of the technical glitch that occurred during the orbit-raising of its important satellite NVS-02. The Apex Committee constituted by ISRO has gone to the bottom of this failure and identified the reasons due to which the satellite could not reach its intended orbit. Along with this report, ISRO has also announced new corrective measures to make future missions completely safe and successful.

What happened on 29 January 2025?

Let us tell you that on January 29, 2025, NVS-02 satellite was sent into space through GSLV-F15. The rocket successfully placed the satellite in its initial orbit and the solar panels were also deployed. But, the real problem came when the process of lifting the satellite from elliptical orbit to circular orbit was started. Due to hindrances at this stage the mission could not achieve its ultimate goal.

Apex Committee reveals: Signal did not reach ‘Pyro Valve’

The Apex Committee formed to investigate the failure conducted a thorough study of telemetry and simulation data. Investigation revealed that the main reason for the problem was the drive signal not reaching the ‘pyro valve’ of the oxidizer line. Actually, it was this signal that gave the power to the engine so that the satellite could raise its orbit. According to the report, this technical glitch occurred due to the disconnection of at least one contact in the main and redundant connector paths, which halted the entire mission.

Effect of improvement visible in CMS-03 mission

ISRO not only discovered the reasons for the failure but also took immediate corrective steps. The recommendations made by the committee to increase the reliability of the pyro system were implemented in the CMS-03 spacecraft, launched on 2 November 2025. The results were pleasing—the satellite, launched aboard an LVM-3 M5 rocket, performed excellently in space and successfully reached its intended orbit.

New strategy for future missions

ISRO has clarified that the lessons learned from the investigation of NVS-02 will now act as a guide for the organization. Redundancy of pyro system operation will be further strengthened in all future space missions so that alternative routes can be activated in case of any signal failure. This transparent attitude of ISRO and the pace of improvement will further strengthen India’s growing steps in the space world.