Pioneer Mission 5
Date of mission
3rd of November 1960.
Pioneer 5 was designed to provide the first map of the interplanetary magnetic field. The vehicles name was Thor able that functioned for a recorded of 106 days.
The first map of the interplanetary magnetic field and communicated with Earth from a record distance of 36.2 million kilometres.
Pioneer 5 discovered that there really was an Interplanetary magnetic field and it also supplied information to help pioneers 10 and 11.