{"id":"aigc-v0-811a1531-3e04-56fc-902c-6fbbc6179321","title":"NVS-02 Satellite's Orbital Mishap: Loose Connection Blamed by ISRO Panel","description":"An ISRO committee investigated the NVS-02 satellite's failure to reach its designated orbit. The inquiry revealed a loose electrical connection as the primary cause, preventing a critical engine valve from activating. This report details the findings and recommendations for future missions.","timestamp":1772271360,"category":"technology","headline":"NVS-02 Satellite's Orbital Mishap: Loose Connection Blamed by ISRO Panel","modifiedHeadline":"ISRO Panel: Loose Connection Halts Satellite Valve","subCategories":["scid_a1828536"],"subcategoriesName":["NASA & ISRO"],"region":"IN","bundleMetaData":{"bundleId":"7b48871c-c993-4956-b43d-6f46f8e1b036","bundleTitle":"Today In India","cardData":null},"iabCategoryId":"472","fcSummary":"india's nvs-02 satellite, vital for the navic navigation system, failed to reach its target orbit due to a critical engine valve failure. an isro panel found a loose electrical connection prevented the valve's activation, impacting both primary and backup circuits. corrective measures & enhanced redundancy were implemented, successfully tested on cms-03.","summary":"ISRO panel: Loose connection caused NVS-02 satellite's orbital mishap, halting a key engine valve. Corrective measures now in place.","ctaUrl":"https://trends.glance.com/newz/science_and_technology/IN/en/feedpost-specials/aigc-v0-811a1531-3e04-56fc-902c-6fbbc6179321?byte=true","sourceUrl":"https://trends.glance.com/newz/science_and_technology/IN/en/feedpost-specials/aigc-v0-811a1531-3e04-56fc-902c-6fbbc6179321?byte=true","bannerImage":"https://g-mob.glance-cdn.com/public/fc/image/ILEOjPkVW7C0.webp","content":"

\n Discover why India's NVS-02 satellite missed its orbital target. A deep dive into the ISRO panel's findings, pinpointing a critical electrical connection failure. Learn about the implications and ISRO's corrective measures.\n

Orbital Discrepancy Explained

Following its launch on a GSLV rocket on January 29, 2025, the NVS-02 satellite, a key component of India's NavIC navigation system, failed to achieve

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its intended circular orbit. While successfully placed into an elliptical transfer orbit shortly after its separation from the GSLVF15 launch vehicle, the satellite's subsequent maneuver to circularize its orbit was unsuccessful. This mission was particularly significant as it marked the 100th launch from ISRO's Sriharikota facility. During the autonomous activities post-separation, the solar panels were deployed, and the satellite's orientation was stabilized for power generation, with all these initial steps performed satisfactorily.

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The Critical Valve Failure

An in-depth analysis by an apex committee established by ISRO pinpointed a critical engine valve failure as the root cause of the NVS-02's orbital misplacement. This specific valve is integral to the engine's oxidizer line and is responsible for initiating the burn sequence required to elevate the spacecraft's orbit. The committee's findings indicated that the crucial signal intended to activate this valve never reached its destination. Without the proper activation of this valve, the engine could not fire as planned, thereby preventing the satellite from transitioning into its designated operational orbit.

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Loose Connection Identified

The most probable explanation, as concluded by the investigating committee, centers on a physical disconnection within the electrical pathway. Specifically, the committee determined that at least one connection within the electrical connector experienced a loosening or outright failure. This issue affected both the primary and backup circuits designed for redundancy. The consequence of this compromised connection was the interruption of the signal's transmission, effectively 'silencing' the command to activate the vital engine valve and leading to the satellite's inability to achieve its intended orbital trajectory.

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Recommendations and Future Proofing

In light of the NVS-02 incident, the committee put forth a series of recommendations aimed at bolstering the reliability and redundancy of pyrotechnic system operations for subsequent missions. These proposed enhancements have since been implemented. Notably, these improvements were successfully incorporated into the CMS-03 spacecraft, also known as GSAT-7R, which was launched on November 2, 2025, aboard an LVM-3 M5 vehicle. The CMS-03, recognized as India's heaviest communication satellite at approximately 4,400 kg and crucial for naval communications, performed its pyro system operations satisfactorily, ensuring its placement in the intended orbit.

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NVS-02 Satellite's Orbital Mishap: Loose Connection Blamed by ISRO Panel

SUMMARY