EUROPEAN SPACE AGENCY

In-orbit Performance of UVIT and First Results

DOI: 10.1007/s12036-017-9445-x Bibcode: 2017JApA...38...28T

Stalin, C. S.; Rao, N. Kameswara; Sutaria, F.; Murthy, J.; Sreekumar, P.; Hutchings, J. B.; Ghosh, S. K.; Kumar, A.; Sankarasubramanian, K.; Pati, A. K.; Subramaniam, A.; Mohan, R.; Tandon, S. N.; Girish, V.; Postma, J.; Koshy, G.; Kamath, P. U.; Kathiravan, S.; Lancelot, J. P.; Mahesh, P. K.; Nagabhushana, S.; Sriram, S.; Sreedhar, Y. H.; Barve, I. V.; Mondal, C.; Sahu, S.

India, Canada

Abstract

The performance of the ultraviolet telescope (UVIT) on-board AstroSat is reported. The performance in orbit is also compared with estimates made from the calibrations done on the ground. The sensitivity is found to be within ∼15% of the estimates, and the spatial resolution in the NUV is found to exceed significantly the design value of 1.8″ and it is marginally better in the FUV. Images obtained from UVIT are presented to illustrate the details revealed by the high spatial resolution. The potential of multi-band observations in the ultraviolet with high spatial resolution is illustrated by some results.

2017 • Journal of Astrophysics and Astronomy
eHST 85
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