51 hour countdown for ISRO’s 100th mission begins

he 51-hour countdown for India’s landmark 100th space mission began today with ISRO’s old warhorse PSLV rocket all set to soar into space on September 9 with two foreign satellites from the spaceport of Sriharikota in Andhra Pradesh.

The launch authorisation board (LAB) for Polar Satellite Launch Vehicle PSLV-C21/SPOT-6/PROITERES mission, which met on September 05, 2012 at Satish Dhawan Space Centre (SDSC) SHAR, Sriharikota has cleared the launch of PSLV-C21/SPOT-6/PROITERES mission at 09:51 hrs (IST) on Sunday, September 9, 2012.

The 51-hour countdown commenced at 06:51 hours today (September 7, 2012). 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.

Besides, mandatory checks on the launch vehicle and spacecraft will be carried out. Also, charging of batteries and pressurisation of propellant tanks onboard the satellite will be performed. Readiness of various ground systems such as tracking radar systems and communication networks will also be ascertained.

Prime Minister Manmohan Singh will witness the mission, in which 720-kg SPOT-6 remote sensing satellite from France (built by ASTRIUM SAS) and a 15-kg Japanese spacecraft PROITERES would be placed in orbit by ISRO’s PSLV C-21.

“Readiness of various ground systems such as tracking radar systems and communication networks will also be ascertained. PSLV-C21 will inject SPOT-6 and PROITERES satellites into an orbit of 655 km altitude at an inclination of 98.23 degree,” it added.

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3 thoughts on “51 hour countdown for ISRO’s 100th mission begins

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