Figure 3. Total dust production rate of Io assuming that the grains are ejected into a cone with 35° opening angle centered at Jupiter. Each vertical bar represents data from one Galileo orbit. The height of the bar shows the dust production rate derived from measurements between 10 to 30 Rj from Jupiter. The data have been corrected for a Jovian local time variation of the dust emission from the Io torus and for a long-term change of the dust instrument sensitivity (Kriiger et al. in prep.). The labels of individual Galileo orbits are indicated at the top. No dust stream measurements were collected during Galileo orbits 5 and 13.

0.001 r

1997 1998 1999 2000 Time (year)

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