Research Article
Nov 1978
Precision Surveying Using Radio Interferometry
Authors: James W. Ryan, Jill J. Wittels, Alan R. Whitney, Irwin I. Shapiro, Alan E.E. Rogers, Douglas S. Robertson, Chopo Ma, … Show All … , Curtis A. Knight, Hans F. Hinteregger, Charles C. Counselman III, William D. Cotton, Brian E. Corey, Robert Coates, and Thomas A. Clark Show FewerAuthor Affiliations
Publication: Journal of the Surveying and Mapping Division
Volume 104, Issue 1
Abstract
The application of Very long baseline Interferometry (VLBI) to surveying is reviewed. An examination of the error budget for the VLBI observing system in use by the GSFC/HO/MIT VLBI team is presented, and methods for decreasing the effects of the various errors sources are reviewed. Results from recent VLBI experiments are presented. These results show millimeter level repeatability on a baseline 1.4-km in length and 10-cm level repeatability on a 4,000-km baseline from Massachusetts to California. Results for polar motion and UT1 determined from VLBI observations are presented and compared with determinations from the Bureau International de l'Heure, the primary international service for polar motion, and with the determinations from the Doppler Satellite System. The Doppler and VLBI determinations are seen to exhibit a common trend not seen in the BIH values.
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Published In
Journal of the Surveying and Mapping Division
Volume 104 • Issue 1 • November 1978
Pages: 25 - 34
Copyright
© 1978 American Society of Civil Engineers.
History
Published in print: Nov 1978
Published online: Feb 12, 2021
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Authors
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James W. Ryan
Mathematician, Geophysics Branch, Goddard Space Flight Center, Greenbelt, Md.
Jill J. Wittels
Research Assoc., Dept. of Earth and Planetary Sci., Massachusetts Inst. of Tech., Cambridge, Mass.
Alan R. Whitney
Member, VLBI Group, Haystack Observatory, Westford, Mass.
Irwin I. Shapiro
Prof., Dept. of Earth and Planetary Sci. and Dept. of Physics, Massachusetts Inst. of Tech., Cambridge, Mass.
Alan E.E. Rogers
Group Leader, VLBI Group, Haystack Observatory, Westford, Mass.
Douglas S. Robertson
Geodesist, Gravity, Astronomy, and Satellite Branch, National Geodetic Survey, Rockville, Md.
Chopo Ma
Research Assoc., Dept. of Physics and Astronomy, Univ. of Maryland, College Park, Md.
Curtis A. Knight
Member, VLBI Group, Haystack Observatory, Westford, Mass.
Hans F. Hinteregger
Member, VLBI Group, Haystack Observatory, Westford, Mass.
Charles C. Counselman III
Assoc. Prof., Dept. of Earth and Planetary Sci., Massachusetts Inst. of Tech., Cambridge, Mass.
William D. Cotton
Research Assoc., Dept. of Earth and Planetary Sci., Massachusetts Inst. of Tech., Cambridge, Mass.
Brian E. Corey
Research Assoc., Dept. of Earth and Planetary Sci., Massachusetts Inst. of Tech., Cambridge, Mass.
Robert Coates
Sr. Scientist, Applications Directorate, Goddard Space Flight Center, Greenbelt, Md.
Thomas A. Clark
Staff Scientist, Lab. for Extraterrestrial Physics, Goddard Space Center, Greenbelt, Md.
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