.- Vesta's UV Lightcurve: Hemispheric Variation in Brightness and Spectral Reversal Amanda R. Hendrix Jet Propulsion Laboratory Mail Stop 230-250 4800 Oak Grove Dr. Pasadena, CA 91 109 hendrix @iDl.nasa.Pov ph. (818)393-1628 fax (8 18)393-4669 Faith Vilas NASA Johnson Space Center Michel C. Festou Observatoire Midi-Pyr'en'ees, Toulouse, France 29 pages 4 figures 2 tables 1