Sriharikota, September 1: Indian Space Research Organisation ISRO was about to launch its 1st private sector navigation satellite IRNSS-1H from Sriharikota High Altitude Range (SHAR) but unfortunately the mission was unsuccessful. The 1425-kg satellite was expected to expand the existing seven satellites of the NavIC constellation. The launch vehicle PSLV-C39 lifted the satellite on Thursday using the 'XL' variant, of PSLV equipped with six strap-ons, each carrying 12 tons of propellant. The three phases of the launch went smoothly, but unfortunately, the heat shield which was supposed to be separated in the fourth stage could not be detached.
The NAVIC is a system of seven home-made navigational satellites which is currently powering the Swadeshi Global Positioning System. The IRNSS 1H had navigation and ranging payloads on board and was set for a mission life of 10 years. Just like the other seven satellites in the NavIC, this satellite too was to orbit nearly 36,000 kms above the earth. The indigenous GPS – NavIC – will provide reliable time-stamped navigational information to users and will have position accuracy better than 20 metres over India and surrounding regions extending to about 1,500 kms. NavIC will reduce India’s dependency on foreign satellites for GPS data.