Proud moment: India's 6th navigation satellite launch Mr. Pranab Mukherjee and Mr. Narendra Modi congratulate scientists; India closer to having own GPS system. ISRO on Thursday successfully put into orbit India’s sixth dedicated navigation satellite, the IRNSS-1F, from here. The satellite was launched on-board India’s workhorse launch vehicle, the Polar Satellite Launch Vehicle (PSLV). The Independent Regional Navigation Satellite System (IRNSS) is designed to provide accurate position information service to users in India and the region extending up to 1,500 km from the border. The Polar Satellite Launch Vehicle (PSLV C-32) lifted off at 4.01 p.m. with the payload. The launch was revised by one minute to 4.01 p.m. “for collision avoidance as per the space debris studies,” according to ISRO. The IRNSS-1F carrying two payloads — the navigation payload and ranging payload — was put into orbit 20 minutes after take-off from the second launch pad at the Satish