Army Ballistic Missile AgencyJuno IILaunch Complex 26B, Cape Canaveral SFS, FL, USA
Juno II | Explorer 11
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No countdown — this launch time is not yet known to the minute.April 27, 1961Add to calendar
Launch SuccessfulWeather 0% go
Army Ballistic Missile Agency's 11th launch · 2nd this year · humanity's 108th orbital launch attempt
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
Window: Apr 27, 14:16 – Apr 27, 14:16 UTC
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Explorer 11
Explorer 11 was a NASA satellite carrying the first gamma-ray telescope flown in space, used to search for high-energy gamma rays from cosmic sources. It operated for several months in a low, moderately elliptical orbit.
Astrophysics · Low Earth Orbit (LEO)
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