India is gearing up to make a significant stride in space-based X-ray astronomy with the launch of its first X-ray polarimeter Satellite (XPoSat). This mission led by ISRO, aims to investigate the polarization of intense X-ray sources. With this mission, ISRO is set to establish a new benchmark in the field of astronomy. Check here to know all about ISRO's XPoSat mission.
The X-ray Polarimeter Satellite (XPoSat) is scheduled for observation from Low Earth Orbit (LEO) at an altitude of approximately 650 km and a low inclination of about 6 degrees. As mentioned on the official website of ISRO, XPoSat carries two scientific payloads designed for simultaneous studies of temporal, spectral, and polarization features of bright X-ray sources. The mission's primary payload, POLIX (Polarimeter Instrument in X-rays) has been developed by the Raman Research Institute in Bengaluru with support from ISRO centres. It focuses on measuring polarimetry parameters in the medium X-ray energy range of 8-30 keV. Along with this, the XSPECT (X-ray Spectroscopy and Timing) payload provides spectroscopic information within the energy range of 0.8-15 keV. It is developed by the U R Rao Satellite Centre (URSC).
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The objectives of the XPoSat mission are multifaceted. It aims to measure X-ray polarization in the 8-30 keV energy band emitted from X-ray sources, while also conducting long-term spectral and temporal studies of cosmic X-ray sources in the 0.8-15 keV energy band. The mission's anticipated lifespan is around five years, during which the payloads will observe X-ray sources during the spacecraft's transit through Earth's shadow, specifically during the eclipse period.
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