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Position calibration methodology for scanning sky monitor for ASTROSAT

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Abstract

Scanning Sky Monitor (SSM) on ASTROSAT is an X-ray sky monitor which has a large Field of View (FOV) and scans the sky to detect and locate X-ray transient sources in the energy range 2 to 10 keV. Experiments are carried out to calibrate SSM detectors for position response and to verify the calibration constants derived. In this paper we discuss the methodology of position calibration of proportional counters for SSM and results from various experiments.

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Acknowledgements

Prof. Dipankar Bhattacharya at IUCAA, India, has been responsible for the Coded mask design for SSM and also the software for the deconvolution technique which is used here to derive the source plane image.

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Authors and Affiliations

  1. Space Astronomy Group, ISRO Satellite Centre, Bangalore, India

    M. C. Ramadevi, B. T. Ravishankar & S. Seetha

  2. Calicut University, Calicut, India

    M. C. Ramadevi

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  1. M. C. Ramadevi
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  2. B. T. Ravishankar
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  3. S. Seetha
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Correspondence to M. C. Ramadevi.

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Ramadevi, M.C., Ravishankar, B.T. & Seetha, S. Position calibration methodology for scanning sky monitor for ASTROSAT. Exp Astron 31, 99–114 (2011). https://doi.org/10.1007/s10686-011-9228-3

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  • DOI: https://doi.org/10.1007/s10686-011-9228-3

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