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How and Why to do VLBI on GPS


Dickey, JM, How and Why to do VLBI on GPS, 2010 General Meeting Proceedings of the International VLBI Service for Geodesy and Astrometry, 7-13 February 2010, Hobart, Tasmania, Australia, pp. 65-69. (2010) [Non Refereed Conference Paper]


In order to establish the position of the center of mass of the Earth in the International Celestial Reference Frame, observations of the Global Positioning Satellite (GPS) constellation using the IVS network are important. With a good frame-tie between the coordinates of the IVS telescopes and nearby GPS receivers, plus a common local oscillator reference signal, it should be possible to observe and record simultaneously signals from the astrometric calibration sources and the GPS satellites. The standard IVS solution would give the atmospheric delay and clock offsets to use in analysis of the GPS data. Correlation of the GPS signals would then give accurate orbital parameters of the satellites {\bf in the ICRF reference frame}, i.e. relative to the positions of the astrometric sources. This is particularly needed to determine motion of the center of mass of the earth along the rotation axis.

Item Details

Item Type:Non Refereed Conference Paper
Keywords:Instrumentation and Methods for Astrophysics
Research Division:Physical Sciences
Research Group:Astronomical sciences
Research Field:Galactic astronomy
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the physical sciences
UTAS Author:Dickey, JM (Professor John Dickey)
ID Code:73345
Year Published:2010
Deposited By:Mathematics and Physics
Deposited On:2011-09-27
Last Modified:2011-09-27

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