Mapping distortion of detectors in UVIT onboard AstroSat observatory
- First Online:
- Cite this article as:
- Girish, V., Tandon, S.N., Sriram, S. et al. Exp Astron (2017) 43: 59. doi:10.1007/s10686-016-9520-3
- 87 Downloads
Ultraviolet Imaging Telescope (UVIT) is one of the payloads onboard AstroSat, India’s first multi-wavelength Astronomy mission. UVIT is primarily designed to make high resolution images in wide field, in three wavelength channels simultaneously: FUV (130–180 nm), NUV (200–300 nm) and VIS (320–550 nm). The intensified imagers used in UVIT suffer from distortions, and a correction is necessary for these to achieve good astrometry. In this article we describe the methodology and calculations used to estimate the distortions in ground calibrations.