[45.15] Uranus in 2002: Clouds, Winds, and Zonal Structure

AAS 201st Meeting, January, 2003
Session 45. The Solar System
Poster, Tuesday, January 7, 2003, 9:20am-6:30pm, Exhibit Hall AB

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[45.15] Uranus in 2002: Clouds, Winds, and Zonal Structure

H. B. Hammel (Space Sci. Inst.), K. A. Rages (SETI/Ames), G. W. Lockwood (Lowell), M. Marley (Ames)

HST images of Uranus were obtained in eight orbits in August 2002, with similar filters and temporal sampling as were used in 2000 and 2001; Keck images of Uranus were also obtained on several nights. Discrete clouds are present in both data sets at a variety of latitudes. We will report zonal velocities for those features with adequate coverage. The 619-nm (methane band) HST images reveal distinct changes in the brightness of the circumpolar region when compared with earlier 619-nm images. We also obtained infrared spectroscopy with SpeX at the IRTF in August 2002. Those data will be compared with similar observations obtained in previous years with the same instrument. This work is supported in part by NASA Grant NAG5-10451 and STScI Grant GO-8680.05-A.

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