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Mahesh

04/07/22 05:52 AM IST

ISRO’s ‘POEM’ platform

In News 
  • Recently,the Indian Space Research Organisation (ISRO) launched the “PSLV Orbital Experimental Module” (POEM) successfully.
POEM Platform
  • 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.
  • It is the first time that the PS4 stage would orbit the earth as a stabilised platform.
  • POEM is carrying six payloads, including two from Indian space start-ups Digantara and Dhruva Space.
  • 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”.
  • “It carries dedicated control thrusters using Helium gas storage. It is enabled with a telecommand feature.
About NavIC
  • Navigation in Indian Constellation (NavIC) is an Indian Regional Navigation Satellite System (IRNSS).
  • It has been developed by Indian Space Research Organization (ISRO).
  • IRNSS comprises of eight satellites, of which three satellites are in geostationary orbit and five satellites in geosynchronous orbit.
  • Its functions are similar to the popular U.S. Global Positioning System (GPS).
  • It was operationalised with the objective of providing navigation, timing services and reliable position in India and its neighbourhood.
  • While GPS has a position accuracy of 20-30 metres, the NavIC is capable to pinpoint location to an estimated accuracy of under 20 metres.
Source- Indian Express 

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