XPoSat (X-ray Polarimeter Satellite) is India’s first dedicated polarimetry mission to study various dynamics of astronomical sources in extreme conditions. The spacecraft will carry two scientific payloads in a low earth orbit. The primary payload POLIX (Polarimeter Instrument in X-rays) will measure the polarimetry parameters (degree and angle of polarization) in medium X-ray energy of 8-30 keV photons of astronomical origin. The XSPECT (X-ray Spectroscopy and Timing) payload will give spectroscopic information in the energy range of 0.8-15 keV. The POLIX payload is developed by Raman Research Institute, Bengaluru in close coordination with ISRO.

On May 25, 2023, ISRO organized an XPoSat User Meet for one day. The user meet aimed to bring various national experts together to brainstorm the best utilization of XPoSat towards advancing the cutting edge scientific understanding in Astronomy. In order to reach to wider audience across the nation, the meeting was made live on ISRO facebook and YouTube channel. Many participants also attended online.

The User Meet has participation from about 20 Institute/Universities all across the country. A total of about 150 participants attended the meeting in which nearly 100 attended in-person and other participated through online platform. The User meet has about 20 presentations from XPoSat project as well as from the science community all across the nation. The scientific sessions consisted of the discussions on Importance of X-ray Polarization measurements in Astronomy, expected impact of XPoSat on various category of astronomical sources including balckhole and neutron stars X-ray binaries, isolated neutron stars, active galactic nuclei, ultra luminous X-ray sources etc. The modelling requirements to interpret XPoSat data were also discussed. Open discussions from participants were also taken for the way forward to maximize science from XPoSat.