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ISRO conducts successful stage test for cryogenic engine-D

ISRO launches its weather satellite
08 Sep 2016
  • ISRO successfully launched its advanced weather satellite, INSAT-3DR at 16:50 hrs today; postponed by 40 minutes. The 29 hour countdown to its launch was started at 11.10 am on September 7.
  • The lift-off took place from the spaceport of Sriharikota which is located 110 kilometres from Chennai.
  • INSAT-3DR, an advanced weather satellite will provide a variety of "meteorological services to the country."

    • INSAT-3DR
    Specifications
  • INSAT-3DR weighs 2,211 kg out of which 1,255 kg is in propellants.
  • Once it reaches the Geostationary Transfer Orbit, it would use its propulsion to reach the geosynchronous orbital home, its final destination.
  • The solar panels will be immediately deployed as soon as INSAT-3DR reaches the intended Geostationary Transfer Orbit.
  • From the launch it would take 17 minutes for the entire process to conclude.

    • Why is it significant?
    Details
  • The launch of GSLV-F05 is of much significance since this would be the first time an indigenous cryogenic engine will be used on an operational GSLV flight.
  • Cryogenic engines use liquid hydrogen as fuel and to burn the fuel liquid oxygen is used as oxidiser.
  • It produces 1.5 times the thrust compared to liquid rocket engines.
  • The GSLV is a three-stage launch vehicle.

    • Operational Life
    FACT
    The INSAT-3D will continue to operate until 2021 whereas the INSAT-3DR will be operational until 2024. Its successor, INSAT-3DS is likely to operate from 2022 to 2029. The 3B and 3C are currently not operational.

    INSAT - 3D and INSAT - 3DR
    Comparison
  • INSAT-3D, the predecessor of 3DR was launched in 2013. It possessed an atmospheric sounding system which enabled it to map humidity, temperature and ozone content vertically.
  • INSAT - 3DR can perform the same functions and has improved functionality in measuring night-time clouds and sea surface temperatures.
  • Both 3D and 3DR have a search-and-rescue transponder that can locate distressed vessels at sea with precision.

    • ISRO conducts successful stage test for cryogenic engine-D
    19 Feb 2017
  • ISRO conducted a successful stage test for its indigenously developed cryogenic engine-D at the liquid propulsion complex at Mahendragiri in Tirunelveli.
  • "The full duration flight test of cryogenic upper stage for GSLV-Mk III was successful," said ISRO Chairman A.S. Kiran Kumar.
  • This test was the last before an actual rocket launch, he added.



    • This post first appeared on NewsBytes: Latest News, Breaking News India, Today News, Current News, please read the originial post: here

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