Satellite Programs & Technology Launch Vehicles & Space Transportation Space Exploration & Science Missions Asia-Pacific (APAC)

ISRO pins NVS-02 failure on unconnected wiring that caused pyro‑valve signal loss and blocked orbit raise

More than a year after launch, ISRO's apex committee concluded a pyro‑valve signal loss — traced to unconnected wiring — caused a valve malfunction that prevented the NVS‑02 navigation satellite from executing its planned orbit‑raising manoeuvres. The finding attributes the programme setback to a hardware/integration error.

Discovered 2026-02-25T06:03:25.289509-08:00 | 2026-02-25T06:03:25.289509-08:00

Briefing

What Hype is tracking

ISRO's apex committee found a pyro‑valve signal loss, traced to unconnected wiring, caused a valve malfunction that prevented NVS‑02 from raising its orbit after launch more than a year ago — a clear single‑point hardware/integration failure.
The loss leaves the intended navigation capability unmet and represents a concrete setback for India's navigation satellite programme, with implications for schedule and redundancy in the constellation; see ISRO's broader mission slate and timelines (source:2d037b32-eb93-456e-8f53-8a66caca5c6c).
The root cause highlights system‑level quality control and integration risks during spacecraft assembly and testing; this follows ISRO's recent return‑to‑flight and upcoming launches, providing operational context for how such failures affect launch cadence and mission recovery (source:3a79d151-0ef0-410a-a151-14e4ff2f6bc4).

Reported By

India Defense News SpaceNews.com wionews.com Times of India