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  • 1985-1989  (2)
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  • 1
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    Creation of a global geodetic network using Mark III VLBI (1986)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: The positions of 15 permanent VLBI stations have been determined using Mark III with one-sigma uncertainties of less than 5 cm except for three stations in the Pacific. 46070 delay/delay rate observations acquired by the Crustal Dynamics Project and Polaris/IRIS from 1980-84 were included in a least squares solution to estimate the station positions, 44 radio source positions, and earth orientation parameters.
    Keywords: GEOPHYSICS
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
  • 2
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    SLR and VLBI technology trends (1986)
    In:  Other Sources
    Details
    Publication Date: 2011-08-19
    Description: SLR and VLBI technology improvements are continuing, aimed at millimeter system performance. New SLR receiver components have achieved single shot RMS precision of 1 cm on LAGEOS. Recent VLBI phase delay observations have achieved sub-cm repeatability. New water vapor radiometers are achieving millimeter precisions in measurements of tropospheric path delay. These improvements, plus others to be discussed, will improve the accuracy of future polar motion measurements.
    Keywords: GEOPHYSICS
    Format: text
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
    NASA TECHNICAL REPORTS
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