Institution: | 1. The Rand Corporation, Santa Monica, California, U.S.A. 2. Institute for Theoretical Astronomy, Leningrad, U.S.S.R. 3. Jet Propulsion Laboratory, Pasadena, California, U.S.A. 4. U.S. Naval Observatory, Washington, D.C., U.S.A. 5. Royal Greenwich Observatory, Sussex, England 6. Maritime Aafety Agency, Tokyo, Japan 7. University of Arizona, Tucson, Arizona, U.S.A. 8. Central Research Institute of Geodesy, Air Survey, and Mapping (TsNIIGAik), Moscow, U.S.S.R.
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