Jupiter satellite events and GRS times for 2009

Following are times for the shadow, transit, occultation, and eclipse events for Jupiter's four major satellites over the above time period. All times are in Universal Time (UT).

All of these tables were generated with Guide 8.0 , which provides a pretty simple way to create tables of satellite events and/or Great Red Spot transits for a specific period. (Click here for a table of Great Red Spot transit times.)

Alternatively, this site provides up-to-date Jupiter observations and transit times. In fact, this is the site I used to get the current longitude of the GRS, for use in computing the transit times.

Also alternatively, this site provided by Kirk Johnson has transmogrified the data into a Google calendar. The above link shows the page in (US) Mountain Time, zone 7 (all times are seven hours "earlier" than those shown below). Kirk points out that

if you have a google account, you should be able to find this calendar
by searching the public calendars for "jupiter satellite events" and
then add it to your own set of calendars (at which point event times
should reflect whatever time zone you're in). 

Even for those of us without Google accounts, conversion to other zones is possible by revising the URL; for example, this link gives the data in US Eastern Standard Time.

Some C/C++ source code, and a DOS executable, for computing tables of Jovian events can be downloaded from this site.

Also, Akkana Peck has provided a Jovian moon/shadow transit program in Java, with source.

The Web site of the R.A.S.N.Z. (Royal Astronomical Society of New Zealand) Occultation Section has data on Jovian satellite events, as well as some discussion of how to best time such events and where your timing data should be reported. (This really does matter, by the way. These observations are still used for adjusting satellite ephemerides, though the "mutual events" are slightly better for that purpose.)

Click here for information on "double shadow" events, where two or more shadows are cast on Jupiter at the same time.