Countdown Begins for Isro's PSLV-C39 Launch <br />The countdown begins as the PSLV-C39 carrying 1425 Kg IRNSS-1H series satellite for navigation-related applications is all set to get launched at Andhra Pradesh's Sriharikota today. <br />The PSLV will launch IRNSS-1H, the eighth satellite of the Indian Regional Navigation Satellite System (IRNSS), into a Sub-Geosynchronous Transfer Orbit (Sub-GTO). <br />The launch will take place from the Second Launch Pad (SLP) of the Satish Dhawan Space Centre (SDSC) SHAR. <br />PSLV-C39, like the previous six launches of IRNSS satellites, will use the 'XL' version of the PSLV equipped with six strap-ons, each carrying 12 tonnes of propellant.