Present status of the 4-m ILMT data reduction pipeline: application to space debris detection and characterization
Bikram Pradhan,
Space sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, Allée du 6 Août 19c, 4000 Liège, Belgium,
bpradhan@ulg.ac.be
Ludovic Delchambre,
Space sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, Allée du 6 Août 19c, 4000 Liège, Belgium
Paul Hickson,
Department of Physics and Astronomy, The University of British Columbia, 6224 Agricultural Road, Vancouver, BC, V6T1Z1, Canada
Talat Akhunov,
Ulugh Beg Astronomical Institute of the Uzbek Academy of Sciences, Astronomicheskaya 33, 100052 Tashkent, Uzbekistan
Przemyslaw Bartczak,
Poznań Observatory, Adam Mickiewicz University, Sloneczna 36, 60-101 Poznań, Poland
Brajesh Kumar,
Indian Institute of Astrophysics, Koramangala, Bangalore 560 034, India
Jean Surdej,
Space sciences, Technologies and Astrophysics Research (STAR) Institute, Université de Liège, Allée du 6 Août 19c, 4000 Liège, Belgium
Abstract
The 4-m International Liquid Mirror Telescope (ILMT) located at the ARIES Observatory (Devasthal, India) has been designed to scan at a latitude of +29° 22’ 26” a band of sky having a width of about half a degree in the Time Delayed Integration (TDI) mode. Therefore, a special data-reduction and analysis pipeline to process online the large amount of optical data being produced has been dedicated to it. This requirement has led to the development of the 4-m ILMT data reduction pipeline, a new software package built with Python in order to simplify a large number of tasks aimed at the reduction of the acquired TDI images. This software provides astronomers with specially designed data reduction functions, astrometry and photometry calibration tools. In this paper we discuss the various reduction and calibration steps followed to reduce TDI images obtained in May 2015 with the Devasthal 1.3m telescope. We report here the detection and characterization of nine space debris present in the TDI frames.
Keywords : astronomy, astrophysics, instrumentation, observatories, space debris
Pour citer cet article
Bikram Pradhan, Ludovic Delchambre, Paul Hickson, Talat Akhunov, Przemyslaw Bartczak, Brajesh Kumar & Jean Surdej, «Present status of the 4-m ILMT data reduction pipeline: application to space debris detection and characterization», Bulletin de la Société Royale des Sciences de Liège [En ligne], Volume 87 - Année 2018, Actes de colloques, First Belgo-Indian Network for Astronomy & Astrophysics (BINA) workshop - November 2016 - Nainital, India, 88 - 91 URL : https://popups.uliege.be/0037-9565/index.php?id=7525.
