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Geodetic Results from Mark 4 VLBIWe present geodetic results of a series of 30 VLBI experiments recorded in Mark 4 mode at rates of 128 and 256 Mbps. The formal uncertainties of UT1, polar motion, and nutation offsets derived from these experiments are better than the corresponding uncertainties from NEOS-A experiments by a factor of 1.3-2. Baseline length repeatability for the series of 32 experiments over a period of one year is about 0.9 ppb. For comparison, NEOS-A length repeatability is about 1.4 ppb. We will discuss optimal use of Mark 4 in the design of future observing networks.
Document ID
20020059947
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
MacMillan, Daniel
(NVI, Inc. Greenbelt, MD United States)
Petrov, Leonid
(NVI, Inc. Greenbelt, MD United States)
Ma, Chopo
(NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
August 20, 2013
Publication Date
May 1, 2002
Publication Information
Publication: International VLBI Service for Geodesy and Astrometry General Meeting Proceeding
Subject Category
Geophysics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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