In the night between 31 March and 1st April, from 23.14.37 UT of 31 March to 00.19.31 UT of 1st April will happen a very rare multiple event of the galileian satellites:
Io, Europa and Ganymede will be simultaneusly in transit with the shadows of Io and Europa.
www.pierpaoloricci.it/eventi/giove310310_eng.htm