X-ray Polarimeter Satellite UPSC NOTE

 X-ray Polarimeter Satellite (XPoSat)

  • The ISRO has announced a plan to launch its first X-ray Polarimeter Satellite (XPoSat).

  •  This satellite to investigate the polarisation of intense X-ray sources.

  • The ISRO said that while space-based X-ray astronomy had been established in India focusing on imaging, time-domain studies, and spectroscopy, the XPoSat mission marked a major value addition. 

  • This research, supplementing traditional time and frequency domain studies. 

  • By XPoSat ISRO  Introduced a novel dimension to X-ray astronomy, generating anticipation and excitement within the scientific community. 

  • The satellite will be launched by the PSLV from the Satish Dhawan Space Centre in Sriharikota.

  • The XPoSat is designed for observation from a low earth orbit (non-sun synchronous orbit of 650-km altitude, low inclination of approximately six degrees) and will carry two scientific payloads.

  • Mission has two payloads, and the mission is capable of simultaneous studies of temporal, spectral, and polarisation features of the bright X-ray sources.


  • The primary payload, POLIX (Polarimeter Instrument in X-rays), is designed to measure polarimetry parameters, specifically the degree and angle of polarisation, in the medium X-ray energy range of 8-30 keV photons originating from astronomical sources. 

  • The payload was developed by the Raman Research Institute, Bengaluru, with support from ISRO centres.

  • The secondary payload is the XSPECT (X-ray Spectroscopy and Timing) payload, which will provide spectroscopic information within the energy range of 0.8-15 keV.



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Learnerz IAS | Concept oriented UPSC Classes in Malayalam: X-ray Polarimeter Satellite UPSC NOTE
X-ray Polarimeter Satellite UPSC NOTE
Learnerz IAS | Concept oriented UPSC Classes in Malayalam
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