ISRO set to launch XPoSat mission on PSLV-C58 rocket to study black holes and more
ISRO is set to welcome the new year with the launch of its first X-Ray Polarimeter Satellite that would offer insights into celestial objects like black holes, onboard a Polar Satellite Launch Vehicle rocket on Monday. The launch comes after the success of its Gaganyaan Test Vehicle D1 mission in October.
The PSLV-C58 rocket, in its 60th mission, would carry primary payload XPoSat and 10 other satellites to be deployed in low earth orbits.
The 25-hour countdown commenced on Sunday for the lift-off scheduled at 9.10 am from the first launch pad at this spaceport, located about 135 kms east of Chennai, on January 1. “The countdown commenced for PSLV-C58 at 8.10 am today,” ISRO sources said.
The X-ray Polarimeter Satellite (XPoSat) is aimed to investigate the polarisation of intense X-ray sources in space. According to ISRO, it is the first dedicated scientific satellite from ISRO to carry out research in space-based polarisation measurements of X-ray emission from celestial sources. Besides ISRO, the US-based National Aeronautics Space Agency (NASA) conducted a similar study -- the Imaging X-Ray Polarimetry Explorer mission in December 2021 on the remnants of supernova explosions, the particle streams emitted by black holes and other cosmic events.
While space-based X-ray astronomy has been established in India focusing on imaging, and time domain studies, Monday's mission marks a major value-addition to the scientific fraternity, the space agency said. The objective of the PSLV-C58 mission includes measuring polarisation of X-rays in the energy band 8-30 keV emanating from about 50 potential cosmic sources, to carry out long term spectral and temporal studies of cosmic x-ray sources. The X-Ray polarisation serves as a
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