Authors / CoAuthors
Titov, O.
Abstract
The secular aberration drift caused by the acceleration of the Solar system barycentre with respect to the reference quasars could be estimated using the recent geodetic VLBI data. The practical approach of the secular aberration drift estimation is proposed. The general equation of group delays has been modified to incorporate the barycentre acceleration vector. More than four million of group delays observed between 1980 and 2008 were adjusted to obtain the secular aberration drift estimates by three approaches. All estimates of this effect amplitude are close (about 18 ± 2 -asec/year) and correspond to the magnitude of the barycentre acceleration vector of (9+/-1)*10(-13) km/sec.
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nonGeographicDataset
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69257
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Keywords
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- External Publication
- ( Theme )
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- geodesy
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_Internal
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2010-01-01T00:00:00
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geoscientificInformation
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