The What’s Up calendars, by Curt Nason, show when various astronomical events will occur during the month.Calendar-2106
Curt Nason has tabulated this list of Jupiter moon events. You may use this as a guide for the challenge of observing the various moon events for each of the four Galilean moons (transits, occultations, eclipses, etc).
According to Curt, “this year Jupiter’s equator is aligned our way so Callisto’s events can be seen, and the document includes events when Jupiter is up for us and the Sun is down.”
Image Credit: Emile CormierJupiter_Moons_Challenge_2021