ISRO successfully re-enters Poem 3 mission into Earth’s atmosphere

ISRO's indigenous POEM 3 (PSLV Orbital Experimental Module-3) mission has completed the Zero Orbital Debris (Zero Space Debris) mission.

Recently, ISRO’s indigenous POEM 3 (PSLV Orbital Experimental Module-3) mission has completed the Zero Orbital Debris (Zero Space Debris) mission.

This unique and affordable space platform was developed using the PS4 stage of the Polar Satellite Launch Vehicle (PSLV C-58) rocket. This feat was achieved on March 21 when POEM-3 re-entered Earth’s atmosphere, completing the mission.

Poem 3 mission left no debris in space

  • According to ISRO, the PSLV C-58 Expose mission has not left any debris in space. Until re-entry,POEM-3 was tracked by ground stations of the ISRO Telemetry Tracking and Command Network (ISTRAC).
  • The Multi-Object Tracking Radar (MOTR) in Sriharikota also tracked the PS4 phase till the morning of 21 March.

A total of nine experimental payloads in POEM-3 for scientific experiments

  • According to ISRO, after completing the primary mission of placing all the satellites in their desired orbits, the terminal stage of PSLV was changed to triaxially stable platform POEM-3.
  • A total of nine experimental payloads were installed inPOEM-3 to conduct scientific experiments.
  • All payloads of POEM-3 met the objectives. Through POEM-3, ISRO has opened new avenues for academicians, startups to experiment with its new payloads.
  • The POEM-3 platform was equipped with power generation and telecommand and telemetry capabilities.
  • Earlier, a similar successful experiment was conducted using POEM-2 in the PSLV-C55 mission in April 2023.

About POEM (PSLV Orbital Experimental Module)

  • In missions from POEM-1 to POEM-3, it launched a total of 21 payloads from various institutions and industries.
  • POEM is an experimental mission of ISRO to conduct in-orbit scientific experiments using the PS4 stage as an orbital platform. PSLV is a four stage rocket. Its first three stages fall into the sea after being used and the last stage (PS4) becomes waste/junk in space after launching the satellite into orbit. ISRO’s POEM mission will also help in tackling the problem of space debris.

PSLV-C58 Mission

PSLV-C58 was launched by ISRO on IST on January 01, 2024 carrying the XPOSAT satellite into a low inclination eastward orbit.

XPoSat (X-ray Polarimeter Satellite)

  • It is ISRO’s first dedicated scientific satellite to conduct research in space-based polarization measurements of X-ray emissions from celestial sources.
  • The satellite configuration is modified from the IMS-2 bus platform. The configuration of the mainframe system is based on the legacy of the IRS satellites.
  • It has two payloads named POLIX (Polarimeter Instrument in X-rays) and XSPECT (X-ray Spectroscopy and Timing). POLIX has been characterized by the Raman Research Institute and XSPECT by the Space Astronomy Group of URSC.

Mission objectives

  • Measuring the polarization of X-rays in the energy band 8-30keV emanating from about 50 potential cosmic sources via Thomson scattering by the POLIX payload.
  • To conduct long-term spectral and temporal studies of cosmic X-ray sources in the energy band 0.8-15keV by the XSPECT payload.
  • Polarization and spectroscopic measurements of X-ray emission from cosmic sources by the POLIX and XSPECT payloads, respectively, in the normal energy bands.
Which mission of ISRO has recently completed Zero Orbital Debris (Zero Space Debris) Mission?

POEM 3 (PSLV Orbital Experimental Module-3).

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