Reference Frames and Earth Rotation by VLBI
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下载链接：
https://cmr.earthdata.nasa.gov/search/concepts/C1214586534-SCIOPS.html
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资源简介：
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.
提供机构：
SCIOPS
