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