| Institution: | (1) The Rand Corporation, Santa Monica, California, USA;(2) Institute for Theoretical Astronomy, Leningrad, USSR;(3) Astronomical Institute, Prague, Czechoslovakia;(4) Astronomisches Rechen-Institut, Heidelberg, Germany;(5) Jet Propulsion Laboratory, Pasadena, California, USA;(6) The Ohio State University, Columbus, Ohio, USA;(7) U.S. Naval Observatory, Washington, D.C., USA;(8) Royal Greenwich Observatory, Sussex, England;(9) Astrophysical Institute, Alma-Ata, USSR;(10) Central Research Institute of Geodesy, Air Survey, and Mapping (TsNIIGAik), Moscow, USSR |
