Applications for POSTDOCTORAL POSITIONS at Department of Astronomy and Astrophysics, TIFR to work in the AstroSat SXT group using AstroSat (and other) data are invited. An interested and eligible candidate may send an application (via e-mail any time in the year) to the Chair, Department of Astronomy and Astrophysics, TIFR (, with a copy to Prof. Sudip Bhattacharyya ( Please see : HERE

Welcome to the Astrosat SXT at TIFR

The Soft X-Ray Telescope (SXT) on Astrosat employs focussing optics and a deep depletion CCD camera at the focal plane to perform X-ray imaging in 0.3-8.0 keV band. The SXT optics consists of 40 concentric shells of gold-coated conical foil mirrors in an approximate Wolter-I configuration. The focal plane CCD Camera is very similar to that flown on SWIFT XRT. The CCD is operated at a temperature of about -82 deg.C by thermoelectric cooling. Click here to see LOG OF OBSERVATIONS: POC

POC page is updated on 10/05/2018.

The foundation of SXT instrument was laid by Prof.KP Singh And Valuable Contribution have been made by these Members

If you are using the data from SXT, please refer the following two papers.

1. "In-orbit performance of SXT aboard AstroSat"

Kulinder Pal Singh, Gordon C. Stewart, Sunil Chandra, Kallol Mukerjee, Sanket Kotak, Andy P. Beardmore, Varsha Chitnis, Gulab C. Dewangan, Sudip Bhattacharyya, Irfan Mirza, Nilima Kamble, Vinita Navalkar, Harshit Shah, S. Vishwakarma, J. Koyande, 2016, SPIE, 9905-46.

2. "Soft X-ray Focusing Telescope Aboard AstroSat: Design, Characteristics and Performance".

K. P. Singh, G. C. Stewart, N. J. Westergaard, S. Bhattacharayya, S. Chandra, V. R. Chitnis, G. C. Dewangan, A. T. Kothare +33 coauthors, 2017, JApA, 38, 29.

In the Acknowledgement section in any publication utilising the SXT data, please add the following line:

"This work has used the data from the Soft X-ray Telescope (SXT) developed at TIFR, Mumbai, and the SXT POC at TIFR is thanked for verifying and releasing the data via the ISSDC data archive and providing the necessary software tools."