Brief by Shorts91 Newsdesk / 10:41am on 26 Jul 2025,Saturday Science
India’s NavIC satellite constellation is facing a severe crisis: out of seven planned satellites, only four remain fully operational, while the rest, including IRNSS‑1A, 1E, and 1G, have experienced atomic clock failures and now only offer limited broadcast services . Additionally, the newly launched NVS‑02 (IRNSS‑1K) suffered an engine valve malfunction in February 2025, hindering orbit raising and rendering it only partially usable . In total, six of the eleven satellites launched so far have partially or fully failed maintenance duties . ISRO intends to replace the defunct satellites and expand NavIC—with five next‑generation NVS satellites and plans for global reach via Medium Earth Orbit deployments—to ensure redundancy and enhance accuracy beyond the current 1,500 km regional coverage. (PC: IDRW)
