ISRO-developed computer helped PSLV-C17

ISRO-developed computer helped PSLV-C17 put satellite in orbit- sriharikota

“One of the achievements” of the successful Polar Satellite Launch Vehicle (PSLV-C17) mission that put the communication satellite GSAT-12 in orbit on Friday was that it used an indigenous computer, Vikram, with advanced software in the rocket's navigation, guidance and control systems, This advanced mission computer helped the rocket put the satellite accurately in orbit.

commands would be given from the Master Control Facility (MCF) at Hassan, Karnataka, to the liquid apogee motor (LAM) on board the GSAT-12 to take the satellite from its present sub geo-synchronous transfer orbit (GTO) to a circular geo-synchronous orbit at an altitude of 36,000 km.

The GSLVs could put a 2.2-tonne communication satellite in a GTO but the PSLV-XL version could put only a 1.4 tonne communication satellite in a sub-GTO.

The GSAT-12, with its 12 extended C-band transponders, would boost ISRO's transponder capacity from 175 to 187. The ISRO had 211 transponders from its communication satellites at the beginning of the 11th Plan but it went down to 141 by April 2011 because of a series of failures with the GSLV flights