Galileo and Cassini Upcoming Schedule of Events, as of 9/28/00: If approved, the Galileo spacecraft's mission will be extended until about 2003. It will end with an impact of the spacecraft into Jupiter, to avoid accidental contamination of any potentially life-bearing Galilean satellites by the spacecraft. Galileo Millennium Mission Orbit C/A date Goals (satellite, atmosphere) G29 12/28/00 Ganymede, South Equatorial Belt, Cassini synergistic obs C30 05/25/01 Callisto, Equatorial Hot Spot I31 08/06/01 Io, Mesoscale Waves I32 10/16/01 Io, Equatorial Hot Spot I33 01/17/02 Io, South Equatorial Belt A34 11/05/02 Amalthea, Super High-Resolution study (~700 m/pix) EOM 01/15/03 End of Mission J35 09/22/03 Jupiter Impact C/A => Periapse Date for that orbit The Cassini spacecraft will fly by Jupiter at the end of this year, on its way to Saturn. The flyby will be distant, about 10 million km, but good temporal coverage will be obtained with an imaging camera, infrared spectro- graph, visible and near-infrared mapping spectrometer, ultraviolet imaging spectrometer and particles and fields instruments. The spatial resolution of the imaging camera will exceed that of HST from 1 month before until one month after closest approach (Dec. 30, 2000). A probe check out also occurs during this flyby, and data are continuously taken by almost all of the instruments during the -55 to +82 day period. Cassini Jupiter Flyby Time Period* "Phase" Goals -55 to -45 d A 1x1 movie, composition, satellite search -45 to -25 d B 2x2 movie, composition, satellite search -25 to -10 d C 2x2 movie, N/S maps, rings, Himalia, Galilean satellites, HST campaigns -10 d to C/A D N/S Maps, feature tracks (GRS, etc), Galilean satellites, 3x3 photometry, solar wind C/A to +15 d E Rings, Atmosphere, Galilean Sats., HST aurora, synchrotron, solar wind +15 to +72 d F Rings, 1x2 movie, Io torus, Dust stream, lightning, magnetosheath, 1x1 movie after +41d +72 to +126 d G 1x1 movie, torus, magnetosheath, lightning After +82d: instrument calibrations, dustband +126d on Cruise Cruise to Saturn * Days from closest approach.