NDTV Correspondent, Updated: July 15, 2011 17:19 IST.
The transponders on the satellite, G-SAT12, will be used for education, telephone and telemedicine services. It weighs 1410 kgs and costs 80 crores. India is short of transponders, and today's mission, if successful, could add 12 C-band transponders.
The PSLV, worth 90 crores, has established itself as a workhouse rocket - this is its 19th mission. It's considered complex and unique because it entails five special orbital manoeuvres. The PSLV has to ensure that the satellite is injected into the correct geo-synchronous orbit - that will take a few days.