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Reference Frames and Earth Rotation by VLBI
Entry ID:
NAOMIZSGL
Summary
Abstract:
Terrestrial and celestial reference frames and the earth rotation parameters
are determined from the global geodetic VLBI observations from 1984. The data include site positions at 1988, site proper motions, radio source positions, daily values of the polar coordinates, UT1-UTC and the nutation offsets. Geographic Coverage
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Spatial coordinates
Temporal Coverage
Start Date:
1984-01-01
Location Keywords
Science Keywords
ISO Topic Category
Platform
Project
Quality
These data are derived from the United States Census Bureau Census of Population and Housing from 1980.
Access Constraints
None
Use Constraints
The Trustees of Columbia University in the City of New York hold the copyright
of this dataset. Users are prohibited from any commercial, non-free resale, or ... ![]() Ancillary Keywords
Originating Center
Data Center
Distribution
Distribution Media:
Online FTP
Distribution Format:
XPT
Fees:
0
Personnel
Publications/References
Center for International Earth Science Information Network (CIESIN) (1996), Archive of Census Related Products (ACRP): Census Block Statistics, NASA Socioeconomic Data and Applications Center (SEDAC), Saginaw, MI, http://sedac.ciesin.columbia.edu/data/set/acrp-census-block-stats-1990
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date:
2002-02-25
Last DIF Revision Date:
2012-09-28
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