ISRO To Launch India’s First X-Ray Polarimeter Satellite on Jan 1, 2024

ISRO (Indian Space Research Organisation) is making significant progress in space exploration, and the year 2024 is set to begin with another unprecedented mission. After the successes of Chandrayaan-3 and Aditya-L1 missions, ISRO is preparing for its latest venture –. Exposat mission, The mission is scheduled for launch on January 1, 2024 India’s first entry into polarimetry, An important area for the study of black holes and other astronomical sources that emit X-rays.

Countdown to the New Year

  • As the world welcomes the dawn of 2024, ISRO scientists will plan the launch of XPoSat at exactly 9:10 am.
  • The mission trajectory involves placing XPoSat in a low earth orbit (LEO), a feat to be achieved by India’s reliable Polar Satellite Launch Vehicle (PSLV).

Scientific payload on board

  • XPoSat carries two sophisticated scientific payloads designed to unravel the mysteries of cosmic phenomena.
  • primary payload, pollix (polarimeter instrument in X-ray), is tasked with measuring polarimetry parameters – in particular, the degree and angle of polarization. it will be organized Within the moderate X-ray energy range of 8–30 keV.
  • second payload, xspect (X-ray Spectroscopy and Timing), will provide important spectroscopic information within the energy range of 0.8–15 keV.

Unraveling cosmic mysteries

  • ISRO emphasizes importance of understanding complex emission mechanisms from celestial sources Black holes, neutron stars, active galactic nuclei and pulsar wind nebulae.
  • Spectroscopic and timing data from various observatories provide valuable insights, but challenges remain in understanding the precise nature of these emissions.
  • The XPoSat mission aims to address these challenges by introducing polarimetric measurements, offering additional dimensions such as degree and angle of polarization.

ISRO’s Technical Contribution: FEAST Software Tool

  • In parallel with its space exploration efforts, ISRO has developed a State-of-the-art analysis software tool named FEAST (Finite element analysis of structures).
  • Born out of decades-long efforts of scientists and engineers at VSCC, ISRO’s flagship center in Thiruvananthapuram, the instrument is designed to operate finite element analysis (FEA) of structures such as satellites, rockets, aircraft, and buildings.

Polarimetry unveiled: Insights into satellite surface reflectance

  • Polarimetry involves measuring the degree of polarization of radiation reflected from a satellite’s surface.
  • Polarimetry empowers astronomers Studying and determining the characteristics of celestial bodies Which can avoid detection by alternative methods.
  • Examples include determining the size, shape, and orientation of dust particles, such as those found around comets or within planet-forming disks that surround stars.

Important questions related to exam

  • Q1. What is the significance of ISRO’s XPoSat mission in the context of India’s space exploration achievements?
  • Q2. How XPoSat contributes to our understanding of astronomical phenomena, especially black holes and X-ray-emitting sources
  • Q3. What are the major scientific payloads on XPoSat, and how do they serve the mission objectives?
  • Q4. Apart from space exploration, how is ISRO contributing to technological progress with the development of FEAST software tools?

Please leave your answers in the comments section.

ISRO to launch India's first X-ray polarimeter satellite on January 1, 2024_40.1

ISRO to launch India's first X-ray polarimeter satellite on January 1, 2024_50.1

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