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An improved celestial radio reference frame: JPL 1982-4 (1983)

Fanselow, J. L. ; Thomas, J. B. ; Sovers, O. J. ; [et al.]

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Publication Date: 2011-08-18

Description: In the development of a celestial radio reference frame, there are now over 100 sources whose relative positions are known with an average uncertainty less than 5 milliarcseconds. These sources are fairly uniformly distributed over the celestial sphere north of -40 deg declination. Their positions are expressed in the new IAU system. This presentation describes the analysis involved in obtaining these results, as well as future plans for linking this system to the JPL planetary ephemerides.

Keywords: ASTRONOMY

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