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![]() Date: 2010-12-17 09:46:32Astrometry Time scales Celestial mechanics Barycentric Dynamical Time Ephemeris Astronomical unit Dynamical time scale International Celestial Reference Frame Jet Propulsion Laboratory Development Ephemeris Measurement Astrology Astronomy | Source URL: maia.usno.navy.milDownload Document from Source WebsiteFile Size: 308,72 KBShare Document on Facebook |
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