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Use of the Long Baseline Array in Australia for Precise Geodesy and Absolute Astrometry

Authors :
Alessandra Bertarini
Adam Deller
Sergei Pogrebenko
Ari Mujunen
Leonid Petrov
Chris Phillips
Source :
Publications of the Astronomical Society of Australia. 26:75-84
Publication Year :
2009
Publisher :
Cambridge University Press (CUP), 2009.

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.<br />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

Details

ISSN :
14486083 and 13233580
Volume :
26
Database :
OpenAIRE
Journal :
Publications of the Astronomical Society of Australia
Accession number :
edsair.doi.dedup.....ee6836a22d6e367de4b4d377fa351c5d
Full Text :
https://doi.org/10.1071/as08030