India: Indian Space Research Organization’s first space mission this year will carry the Indian Regional Navigation Satellite System, IRNSS-1E, in a Polar Satellite Launch Vehicle (PSLV-31) rocket from the spaceport of Sriharikota, Andhra Pradesh, on January 20. The 48-hour countdown for the rocket liftoff has begun. The 1,425 kg IRNSS-1E is the fifth navigation satellite of the seven satellites constituting the IRNSS space segment. It two types of payloads — navigation and ranging payload — and costs around Rs 150 crore. IRNSS will be the Indian equivalent of the Global Positioning System (GPS) and provide road, air and maritime navigation services over a vast area when all the seven satellites are made operational.