Drive signal did not reach pyro valve: Isro on NVS-02 orbit-raising issue

The Indian Space Research Organisation (ISRO) on Wednesday detailed its on-orbit observations of the NVS-02 spacecraft and the recommendations made by an Apex Committee constituted to review the issue that affected its orbit-raising operations. NVS-02, the second spacecraft in the NVS series, was injected into an elliptical transfer orbit on January 29, 2025, following its launch aboard GSLV-F15. NVS-02 was injected successfully into the elliptical transfer orbit of 170x37,785 km with 20.8 degree inclination at 00:53 UT, ISRO said in a statement. The spacecraft was separated from the launch vehicle at 01:12:08 UT, after which a series of autonomous activities on the satellite were carried out, including the solar panel deployment and stabilising the orientation for power generation, it said. "However, the orbit raising operations from the elliptical to circular orbit could not be carried out," it said. An Apex Committee was subsequently formed to examine the observations and recom