India set to launch five British satellites

Chennai, July 8: The Indian space agency on Wednesday morning began the countdown for the July 10 rocket launch that would carry five British satellites. According to Indian Space Research Organisation (ISRO), the 62 hours and 30 minutes countdown for the July 10th night launch of rocket Polar Satellite Launch Vehicle (PSLV) XL variant began at 7.28 a.m. on Wednesday. The rocket is scheduled to blast off at 9.58 p.m. on July 10 from the first launch pad with five satellites together weighing around 1,440 kg, for an undisclosed fee. Since 1999 India till date has launched 40 satellites of other countries and the successful launch of the five British satellites would take the tally to 45. The 44.4 metre tall and weighing 320 tonne the PSLV is a four stage/engine rocket with six strap on motors for addition thrust during the initial phase of the flight. The first and third stages are powered by solid fuel and are cast ready while the second and fourth stages are powered by liquid fuel which will be filled during the countdown. Apart from fuelling up the engines, all the systems would be checked and rechecked during the countdown. According to ISRO, this is the heaviest commercial luggage carried by a PSLV rocket till date. Of the five British satellites, three are identical DMC3 optical earth observation satellites weighing 447 kg. These will be put into a 647-km sun-synchronous orbit.

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