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Download Poster NASA Dawn Mission to Asteroid Vesta :
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The Launch Authorisation Board (LAB) for PSLV-C17/GSAT-12 mission, which met on July 12, 2011 at Satish Dhawan Space Centre - SHAR, Sriharikota has cleared the launch of PSLV-C17 at 16:48 hrs (IST) on Friday, July 15, 2011.
The 53 hour countdown commenced at 11:48 hours on July 13, 2011. During the Countdown, propellant-filling operations of the liquid propellant second stage (PS2) and fourth stage (PS4) of the launch vehicle will be carried out. Mandatory checks on the launch vehicle and spacecraft including charging of batteries and pressurization of propellant tanks will be performed. Readiness of various ground systems such as tracking radar systems and communication networks will also be checked.
PSLV-C17 launched GSAT-12 satellite into a sub-Geosynchronous Transfer Orbit of 284 km perigee and an apogee of 21,000 km. GSAT-12 communication satellite weighing 1410 kg with 12 Ext-C Band transponders will augment the communication services in the country.