The sky was clear and the weather good for the launch of Rs.90 crore rocket, Polar Satellite Launch Vehicle-C17 (PSLV-C17), scheduled at 4.48 p.m., officials said. The Rs.80 crore GSAT-12 satellite has 12 extended C-band transponders - automatic receivers and transmitters for communication and broadcast of signals.
The satellite is expected to serve the Very Small Aperture Terminal (V-SAT) sector. VSATs are used to transmit data like point of sale transactions or to provide satellite internet access.
The satellite will augment transponder capacity of Indian National Satellite (Insat) system that presently comprises eight satellites - Insat-2E, Insat-3A, Insat-3C, Insat-3E, Insat-4A, Insat-4B, Insat-4CR and GSAT-8 providing 175 transponders in the S, C, extend C and Ku bands.
This is the second time ISRO launched a rocket with this specification. The earlier one was for the Chandrayaan moon mission.