Navigational satellite IRNSS 1-B launch set for March 31 | The Indian Express Press Trust of India | Chennai | March 7, 2014 7:14 pm Indiaâ€™s latest navigational satellite IRNSS 1-B would be launched onboard PSLV C-24 rocket from the spaceport at Sriharikota on March 31. There would be a two-and-a-half day countdown which would be preceded by a launch rehearsal on March 26, Indian Space Research Organisation (ISRO) sources said today. â€œThe launch of IRNSS 1-B from the Satish Dhawan Space Centre atPSLV C-24 rocket is scheduled at 5.20 pm on March 31,â€ they told PTI. This is the second of the seven satellites planned for Indian Regional Navigational Satellite System (IRNSS), whose applications include terrestrial and marine navigation, disaster management, vehicle tracking and fleet management. ISRO had launched IRNSS 1-A, the first in the series, on July 1 last year onboard its workhorse Polar Satellite Launch Vehicle (PSLV) C-22. IRNSS is similar to USâ€™ Global Positioning System (GPS), Russiaâ€™s Glonass and Europeâ€™s Galileo. China and Japan too have similar systems named Beidou and Japanese Quasi Zenith Satellite System respectively, they said.