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ISRO’s ‘POEM’ platform

  • IASbaba
  • July 2, 2022
  • 0
Science and Technology
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In News: ISRO places 3 Singapore satellites, 6 experiments in orbit in second launch this year. The first one having placed an Indian Earth Observation Satellite in orbit.

POEM

  • The PSLV Orbital Experimental Module is a platform that will help perform in-orbit experiments using the final, and otherwise discarded, stage of ISRO’s workhorse rocket, the Polar Satellite Launch Vehicle (PSLV).
  • The PSLV is a four-stage rocket where the first three spent stages fall back into the ocean, and the final stage (PS4) — after launching the satellite into orbit — ends up as space junk.
  • But, with the addition of a little power to keep the stage in orbit, they can be utilised for experiments.
  • POEM has a dedicated Navigation Guidance and Control (NGC) system for attitude stabilisation, which stands for controlling the orientation of any aerospace vehicle within permitted limits. The NGC will act as the platform’s brain to stabilize it with specified accuracy.
  • POEM will derive its power from solar panels mounted around the PS4 tank, and a Li-Ion battery. It will navigate using “four sun sensors, a magnetometer, gyros & NavIC”.

Source: The Indian Express

 

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