J. Todd Hoeksema, Senior Research Scientist W.W. Hansen Experimental Physics Laboratory Solar Observatories Group: Solar Oscillations Investigation - Michelson Doppler Imager Wilcox Solar Observatory Stanford University Dr. J. Todd Hoeksema Phone: 1 650 723-1506 Cypress C-13 FAX: 1 650 725-2333 466 Via Ortega Stanford, CA 94305-4085 E-mail: todd@solar.stanford.edu U.S.A. URL: http://sun.stanford.edu/~todd