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NavIC explained: Why India's own navigation system needs four satellites
NavIC can no longer provide standalone navigation services after the number of operational satellites fell below the minimum required. Here's what happened and why it matters
IRNSS accepted as component of World Wide Radio Navigation System
IRNSS is an independent regional navigation satellite system developed by India
ISRO IRNSS-1H launch from Sriharikota unsuccessful: Here's why it failed
ISRO chairman A S Kiran Kumar confirmed the same
