After PSLV setbacks stall launches, Isro hopes to bounce back following expert panel report
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Context
The Indian Space Research Organisation's highly reliable has faced consecutive mission failures due to anomalies in its third stage. This disruption has cascading effects, delaying crucial satellite launches needed to restore India's navigation system and stalling the maiden flight of an industry-manufactured rocket.
UPSC Perspectives
Scientific (Launch Vehicle Architecture)
The is ISRO's workhorse, utilizing a four-stage architecture alternating between solid and liquid propellants. The recent mission failures have been traced to anomalies in the third stage (PS3), which is a high-performance solid rocket motor. This specific failure has broader implications because ISRO's newer program utilizes a solid booster directly derived from the PSLV's third stage. Consequently, resolving this PS3 anomaly is a prerequisite for resuming both PSLV and SSLV flights. For UPSC, understanding the payload capacities, orbital destinations (like Low Earth Orbit vs. Geostationary Transfer Orbit), and stage compositions of India's launch vehicles is a recurring Preliminary exam theme.
Strategic (NavIC and Sovereign PNT)
India's regional navigation system, , requires a minimum active constellation of four satellites to accurately compute 3D Position, Navigation, and Timing (PNT) data. The recent decommissioning of the aging satellite due to atomic clock failure has reduced the operational fleet to just three, temporarily suspending India's independent navigation capabilities. The delay in launching the next-generation replacement satellite (NVS-03) directly stems from the PSLV grounding. Strategically, NavIC was conceptualized post-Kargil War to eliminate dependence on the American GPS for military logistics and precise targeting, making its swift restoration a national security imperative.
Economic (Space Sector Privatization)
The grounding of the PSLV also delays a major milestone in India's space privatization journey: the maiden launch of a fully industry-built rocket. Under a technology transfer agreement facilitated by and , a consortium of and was contracted to manufacture five PSLV-XL rockets. This GOCO (Government Owned, Contractor Operated) model is designed to free ISRO from routine manufacturing, allowing it to focus on deep space exploration and advanced R&D. The current technical setbacks serve as an early stress test for this nascent public-private partnership in navigating the high-risk aerospace sector, highlighting the necessity of ISRO's continued hand-holding for private industry.