Abstract Details

Name: Santaji N Katore
Affiliation: NCRA
Conference ID: ASI2017_924
Title : Characterising the time-domain (250-500 MHz) band stability of the upgraded GMRT system
Authors and Co-Authors : Dharam V. Lal (NCRA), Nilesh S. Raskar (NCRA) and Ishwara Chandra(NCRA).
Abstract Type : Oral
Abstract Category : Instrumentation and Techniques
Abstract : Giant Metrewave Radio Telescope (GMRT), located near Pune in India, is an array of radio telescopes operating at metre wavelengths. It is currently undergoing a very significant upgrade to retain its status as the most sensitive interferometer in the world at low radio frequencies. Among several ongoing upgrades to almost all aspects, in the new frond-end and the digital back-end upgraded systems, we now have 400 MHz RF receivers, and 400 MHz digital backend. We have performed the study of time-domain band stability over long time baseline for the 250-500 MHz band of the upgraded GMRT. Here, we present the improvements in the quality of the upgraded GMRT data and compare it with the legacy GMRT system.