Photo: NOAA Photo Library · Public domain (US government)

Thor Delta E1 | IMP G

Failure US Air Force, Thor Delta E1

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Mission

Astrophysics · Elliptical

Satellite instrumented to study interplanetary magnetic fields, energetic particles, and plasma.

Remind me

Before liftoff
Also notify me of

If the launch moves, your reminders move with it, and at the time of your first reminder we tell you the new date.