| Introduction to the Galilean satellite source data |
The Jovian system has now been visited by 5 spacecraft: four flyby missions in the 1970s and one orbiter in the 1990's:
|
Mission |
Encounter date(s) |
Type of encounter |
Significant discoveries |
| Pioneer 10 |
3 December 1973 |
flyby |
Io's ionosphere |
| Pioneer 11 |
2 December 1974 |
flyby |
refined masses of satellites |
| Voyager 1 |
5 March 1979 |
flyby |
active volanism on Io |
| Voyager 2 |
9 July 1979 |
flyby |
Frozen ocean on Europa |
| Galileo | 7 December 1995 to 31 December 1999
(nominal and extended missions) |
Jupiter orbiter |
|
The maps of the Galilean satellites (the four largest satellites of Jupiter, discovered by Galileo Galilei in 1610) on this site are based on data from the Voyager 1 and Voyager 2 missions.
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