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ISRO's PSLV-C35 successfully places seven other satellites in orbit.

  • PSLV, PSLV-C35, Satellite, ISRO, Indian Space Research Organisation, Lift off, Dhawan Space Center
    Vikram Sarabhai Space Centre director K Sivan said, "The rocket has placed all the satellites in precise orbits."

    It is for the first time that satellites were placed in two different orbits with a single rocket.

  • PSLV, PSLV-C35, Satellite, ISRO, Indian Space Research Organisation, Lift off, Dhawan Space Center
    Around 17 minutes later, SCATSAT-1, the main payload of PSLV in its 37th flight, was placed in the polar sun synchronous orbit at an ...

    The Polar Satellite Launch Vehicle (PSLV-C35) carrying the eight satellites took off from Satish Dhawan Space Centre in Sriharikota at 9.12am.

  • PSLV, PSLV-C35, Satellite, ISRO, Indian Space Research Organisation, Lift off, Dhawan Space Center
    Isro chairman A S Kiran Kumar said SCATSAT-1 would be a stop gap arrangement between Oceansat-1 and Oceansat-2.

    SCATSAT-1, which will provide weather forecast including cyclone detection and tracking, will succeed the now defunct Oceansat-2 satellite launched in 2009.

  • PSLV, PSLV-C35, Satellite, ISRO, Indian Space Research Organisation, Lift off, Dhawan Space Center
    This provided the rocket the necessary thrust to coast into the polar orbit at an altitude of 689km.

    After the first satellite injection, PSLV-C35 coasted for an hour before its fourth-stage engine was reignited and shut down, for about 20 seconds.

  • PSLV, PSLV-C35, Satellite, ISRO, Indian Space Research Organisation, Lift off, Dhawan Space Center
    It then began injecting the rest of the satellites.

    Again, after an hour, the engine was restarted and cut off within a period of about one minute for it to further coast.

  • PSLV, PSLV-C35, Satellite, ISRO, Indian Space Research Organisation, Lift off, Dhawan Space Center

    They included two satellites developed by educational institutions -- Pratham from IIT-Bombay and Pisat from PES University, Bangalore, and its consortium -- and five other commercial satellites from Algeria, Canada and the US.

  • PSLV, PSLV-C35, Satellite, ISRO, Indian Space Research Organisation, Lift off, Dhawan Space Center

    Mission director B Jayakumar said, "The mission had many complexities - planning and execution, power management and thermal management. PSLV now has the flexibility to suit customer demands."

  • PSLV, PSLV-C35, Satellite, ISRO, Indian Space Research Organisation, Lift off, Dhawan Space Center
    wice within a short span of time in a cold and low-gravity environment and letting it coast further.

    The challenge in the launch was igniting and shutting down the fourth-stage engine, called multiple burn technology,

  • PSLV, PSLV-C35, Satellite, ISRO, Indian Space Research Organisation, Lift off, Dhawan Space Center
    But the trickiest part was to cool down the engine between two restarts and protect the rocket and satellites from the heat generated when ...

    Isro demonstrated the technology in its two previous PSLV launches - PSLV-C34 in June 2016 and PSLV-C29 in December 2015.

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