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The Calibration of the UVIT Detectors for the ASTROSAT Observatory

Published online by Cambridge University Press:  03 March 2020

Denis Leahy ,
J. Postma ,
J. B. Hutchings  and
S. N. Tandon
Denis Leahy
Affiliation:
Dept. of Physics and Astronomy, University of Calgary, Calgary, AB, T2N 1N4, Canada email: leahy@ucalgary.ca
J. Postma
Affiliation:
Dept. of Physics and Astronomy, University of Calgary, Calgary, AB, T2N 1N4, Canada email: leahy@ucalgary.ca
J. B. Hutchings
Affiliation:
Herzberg Institute of Astrophysics, 5071 West Saanich Road, Victoria, BC V9E 2E7, Canada
S. N. Tandon
Affiliation:
Inter-University Center for Astronomy and Astrophysics, Pune, India Indian Institute of Astrophysics, Koramangala II Block, Bangalore-560034, India
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Abstract

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The UVIT ultraviolet and visual band detectors and electronics for the ASTROSAT observatory were calibrated in the vacuum laboratory at the University of Calgary. This work was supported by the Canadian Space Agengy and carried out prior to integration with the UVIT optical assembly and the ASTROSAT spacecraft. The multiband (X-ray, ultraviolet and optical) ASTROSAT observatory was successfully launched by the Indian Space Research Organization on Sept. 28, 2015, with subsequent in-orbit verification and ongoing calibration activities. Here we discuss the current issues of calibrating the UVIT data, such as distortion corrections, and how the laboratory data is being used to address these issues.

Keywords

instrumentation: detectorstechniques: image processingtechniques: photometric
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 14 , Symposium A30: Astronomy in Focus XXX , August 2018 , pp. 487 - 491
Copyright
© International Astronomical Union 2020

References

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