Large Area X-ray Proportional Counter (LAXPC) in Orbit Performance : Calibration, background, analysis software
H. M. Antia, P. C. Agrawal, Dhiraj Dedhia, Tilak Katoch, R. K., Manchanda, Ranjeev Misra, Kallol Mukerjee, Mayukh Pahari, Jayashree Roy, P., Shah, J. S. Yadav
TL;DR
This paper reviews the five-year in-orbit performance of the LAXPC instrument on AstroSat, detailing its calibration, background, and software tools, highlighting its capabilities and current limitations.
Contribution
It provides a comprehensive assessment of LAXPC's in-orbit performance, calibration, and software, offering valuable insights into its operational status and scientific utility.
Findings
One detector is functioning nominally after five years.
Pressure, energy resolution, and gain vary over time.
Background levels and instrument capabilities are characterized.
Abstract
The Large Area X-ray Proportional Counter (LAXPC) instrument on-board AstroSat has three nominally identical detectors for timing and spectral studies in the energy range of 3--80 keV. The performance of these detectors during the five years after the launch of AstroSat is described. Currently, only one of the detector is working nominally. The variation in pressure, energy resolution, gain and background with time are discussed. The capabilities and limitations of the instrument are described. A brief account of available analysis software is also provided.
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