Physics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm...p51a09c&link_type=abstract
American Geophysical Union, Spring Meeting 2001, abstract #P51A-09
Physics
5719 Interactions With Particles And Fields, 5737 Magnetospheres (2756), 5757 Remote Sensing
Scientific paper
The Jupiter Millenium Campaign over Dec. 2000 - Jan. 2001 has provided a unique opportunity to perform simultaneous measurements of the solar wind approaching Jupiter (by Cassini) and the brightness and spatial distributions of Jupiter's aurora (using HST/STIS). In addition, coordinated measurements after closest approach between HST, Cassini, and Galileo have provided measurements of the magnetospheric properties at multiple locations (from Cassini and Galileo) as well as stereo imaging of the aurora (from HST and Cassini). This talk will present an overview of the HST imaging data from this campaign. The seven days of HST/STIS observations, covering nearly complete Jupiter rotations, is permitting us to perform several key measurements. In addition to the comparison with solar wind and magnetospheric data sets, there is sufficient temporal coverage to measure the variations of auroral emissions on scales from seconds to many hours. Extended time coverage also permits measurements of the degree of corotation or local time motions of all observed auroral features. By comparison with measurements of the degree of corotation of magnetospheric plasma versus distance from Jupiter, this permits an identification of the magnetic mapping of auroral features independent of any magnetic field model. This is proving particularly helpful in regions of broken auroral structures in the northern afternoon aurora and polar cap.
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