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Results from the regional AUSTRAL VLBI sessions for Southern Hemisphere reference frames

conference contribution
posted on 2023-05-23, 12:03 authored by Lucia McCallumLucia McCallum, James LovellJames Lovell, Jamie McCallumJamie McCallum, Rastorgueva-Foi, E, Stanislav ShabalaStanislav Shabala, Bohm, J, Mayer, D, Sun, J, Titov, O, Weston, S, Gulyaev, S, Natusch, T, Quick, J
The AUSTRAL observing program is an initiative led by the Australian AuScope VLBI antennas in collaboration with radio telescopes in Warkworth, New Zealand, and Hartebeesthoek, South Africa. In 2014 the number of AUSTRAL sessions increased tremendously. Comparing recent results to the standard products achieved in global VLBI sessions regularly undertaken by the International VLBI Service for Geodesy and Astrometry (IVS), better accuracies in terms of baseline length repeatabilities are found for these regional AUSTRAL sessions. The network of (almost) identical small and fast telescopes as well as the technical equipment at all stations allows for new observing modes and improved operations, as such serving as a testbed for the future VLBI Global Observing System (VGOS). Special AUST-Astro sessions are used for dedicated astrometry of sparsely observed radio sources in the southern sky, as well as for detecting new radio sources for geodesy. In 2015, the AUSTRAL program will be further increased and final steps are now being undertaken for full VGOS compatibility of the three AuScope VLBI antennas. We present the latest results of the AUSTRAL sessions and give an overview of the multiple areas of research they support.


Publication title

Proceedings of the 2014 International Association of Geodesy Symposium (REFAG 2014)


T van Dam






School of Natural Sciences


Springer International Publishing

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International Association of Geodesy Symposia

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Copyright 2016 Springer

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Expanding knowledge in the earth sciences

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