Army Ballistic Missile AgencyJuno-ILaunch Complex 5, Cape Canaveral SFS, FL, USA
Juno-I | Explorer 4
Launch window
No countdown — this launch time is not yet known to the minute.July 26, 1958Add to calendar
Launch Successful
Image: NASA
Army Ballistic Missile Agency's 4th launch · 4th this year · humanity's 15th orbital launch attempt
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
Window: Jul 26, 15:00 – Jul 26, 15:00 UTC
Flight preview
Explorer 4
An American satellite in order to study the Van Allen radiation belts and the effects of nuclear explosions upon these belts.
Earth Science · Medium Earth Orbit (MEO)
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