XPoSat will study the 50 locally brightest (known) sources in the universe consisting of, variously, pulsars, black hole X-ray binaries, active galactic nuclei, neutron stars and non-thermal supernova remnants.

The observation commenced on 5 January 2024, capturing the supernova remnant's emission lines corresponding to elements such as magnesium, silicon, sulphur, argon, calcium, and iron.

[20][21] XPoSat's POLIX sensor has started making scientific observations including first-ever data of x-ray polarisation of the Crab Pulsar, its first subject.

POLIX monitored this fast-spinning neutron star in the Crab Nebula that releases roughly thirty X-ray pulses per second.

Through the identification of polarization in its incoming X-rays, POLIX provides fresh perspectives on the physical emission processes at the surface of neutron stars.

XSPECT was used in conjunction with data from ground based observatories to provide fast timed and good spectroscopic results in the X-Ray spectra.

[11] The instrument is rotated along the viewing axis leading to the measurement of the azimuthal distribution of the scattered X-ray photons which gives information on polarisation.

Localization of the X-ray photon in the detectors is carried out by the method of charge division in a set of resistive anode wires connected in series.

Key science objectives of XSPECT include understanding long-term behavior of X-ray sources through correlation of timing characteristics with spectral state changes and emission line variations.