1. Use of the Long Baseline Array in Australia for Precise Geodesy and Absolute Astrometry
- Author
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Alessandra Bertarini, Adam Deller, Sergei Pogrebenko, Ari Mujunen, Leonid Petrov, and Chris Phillips
- Subjects
Novel technique ,FOS: Physical sciences ,Geodetic datum ,Astronomy and Astrophysics ,Astrometry ,Geodesy ,Space Physics (physics.space-ph) ,Geophysics (physics.geo-ph) ,Physics - Geophysics ,Radio telescope ,Physics - Space Physics ,Space and Planetary Science ,Very-long-baseline interferometry ,Baseline (configuration management) ,Geology - Abstract
We report the results of a successful 12 hour 22 GHz VLBI experiment using a heterogeneous network that includes radio telescopes of the Long Baseline Array (LBA) in Australia and several VLBI stations that regularly observe in geodetic VLBI campaigns. We have determined positions of three VLBI stations, ATCA-104, CEDUNA and MOPRA, with an accuracy of 4-30mm using a novel technique of data analysis. These stations have never before participated in geodetic experiments. We observed 105 radio sources, and amongst them 5 objects which have not previously been observed with VLBI. We have determined positions of these new sources with the accuracy of 2-5 mas. We make conclusion that the LBA network is capable of conducting absolute astrometry VLBI surveys with accuracy better than 5 mas., Published in Publications of the Astronomical Society of Australia. 10 pages, 3 figures, 5 tables. Table 5 in a machine readable form is accessible in the source of this submission
- Published
- 2009
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