The Polar Satellite Launch Vehicle, in its forty-first flight (PSLV-C39), was suppose to launch IRNSS-1H, the eighth satellite of the Indian Regional Navigation Satellite System (IRNSS) into a Sub-Geosynchronous Transfer Orbit (Sub-GTO).

Launch of PSLV-C39/IRNSS-1H, Scheduled on Aug 31, 2017 from Satish Dhawan Space Centre, SHAR, Sriharikota was unsuccessful.