New and improved software for data processing at HartRAO

Abstract

The Hartebeesthoek Radio Astronomy Observatory (HartRAO) has been processing its data using LINES, a Fortran-based program developed in 1989. However, due to the lack of adequate software updates over recent years, the program has become difficult to work with, sighting problems ranging from compatibility issues with newer operating systems to maintenance issues from using a generally unfamiliar programming language. This work presents DRAN, a new software package for the reduction and analysis of HartRAO single-dish continuum data. DRANs main functionality is based on LINES, however, it was developed using Python and offers a variety of advanced features that include automated data flagging, outlier detection, flux calibration, and time-series analysis which were not previously available in LINES. The objective of this project was to produce a standard user friendly software package for the observatory that produces timeously calibrated data, drift scan images, and supporting documentation for users of HartRAO continuum data.