If it is on there will be a small treat for everyone (from the events calender):
General Astro
Other Astro Events
Date: Saturday, June 16, 2007 At 21:00
Duration: 3 Hours
All times are EST.
June 16th
21.11 Io ingress
21.48 Ganymede inress
23.23 Io egress
00.03 Ganymede egress
From 21.48 to 23.23 actual transit time.