Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984cemec..34...39s&link_type=abstract
(Bundesministerium für Wissenschaft und Forschung of Austria, Alexander von Humboldt Colloquium on Celestial Mechanics: The Stab
Astronomy and Astrophysics
Astronomy
1
Asteroids, Microwave Emission, Radio Astronomy, Very Large Array (Vla), Antenna Arrays, Brightness Temperature, Ceres Asteroid, Flux Quantization, Position (Location), Thermal Radiation
Scientific paper
The weak thermal emission from the largest minor planets can be detected and measured at all points around their orbits at microwave frequencies using the Very Large Array (VLA). Position determinations of astrometric quality have been obtained, and flux measurements have provided size estimates. When enough precise positional observations have been accumulated, the orbits of the minor planets and the earth can be determined. This will allow the equinox to be located within the radio reference frame, providing a truly fundamental coordinate system for radio source positions. It will also provide a means of relating the optical and radio (quasar) coordinate systems.
Johnston Ken J.
Kaplan George H.
Seidelmann Kenneth P.
Wade Campbell M.
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