A Model of Sky Temperature Estimation at 1.42 GHz using University of Baghdad’s Radio Telescope

Ahmed A.  Hameed; Kamal M.  Abood

doi:10.24996/ijs.2021.62.11(SI).33

Authors

Ahmed A. Hameed Department of Astronomy and Space, College of Science, University of Baghdad, Baghdad, Iraq https://orcid.org/0000-0001-5811-0163
Kamal M. Abood College of Remote Sensing & Geophysics, Al-Karkh University of Science, Baghdad, Iraq

DOI:

https://doi.org/10.24996/ijs.2021.62.11(SI).33

Keywords:

21 cm line emission, sky temperature, antenna temperature

Abstract

The objective of this study is to select a suitable observing region at Baghdad location (44^o 22^' 48^", 33^o 16^' 30^") with low interference that may affect frequency of 1.42 GHz. Baghdad University Radio Telescope (BURT) is used in this study to determine a convenient region for observation in Baghdad sky. Different azimuths and elevations were chosen at different observations time. The results of this study showed that the best observations regions were located at azimuth (120^o-160^o) and (210^o-260^o). These regions included less sky temperature and estimated to be (42.8 to 163) K. The sky temperature model could be represented as a polynomial of third degree that could fit the behavior of the observation points.