Affiliation: | 1. Space Research Institute, U.S.S.R. Academy of Sciences, Moscow 117810, U.S.S.R.;2. Space Science and Engineering Center, University of Wisconsin-Madison, Madison, WI 53706, U.S.A.;3. Jet Propulsion Laboratory, Pasadena, CA 91109, U.S.A.;4. Meteorological Service of the G.D.R., Potsdam, G.D.R.;5. Clarendon Laboratory, Oxford University, Oxford, OX1 3PU, U.K.;6. Lunar and Planetary Laboratory, University of Arizona, Tucson, AZ 85721, U.S.A. |