Carlson, R. W. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Baines, K. H. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Girard, M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kamp, L. W. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Drossart, P. (Observatoire de Paris-Meudon France)
Encrenaz, T. (Observatoire de Paris-Meudon France)
Taylor, F. W. (Oxford Univ. United Kingdom)