Robert A. Preston, S. J. Tingay, D. W. Murphy, D. L. Meier, D. L. Jones, M. L. Lister, B. G. Piner
Jet Propulsion Laboratory, Pasadena, California 91109

T.J. Pearson, A.C.S. Readhead
California Institute of Technology, Pasadena, California

H. Hirabayashi and H. Kobayashi
Institute of Space and Astronautical Science, Sagamihara, Japan

M. Inoue
Nobeyama Radio Observatory, Nobeyama, Japan