NATIONAL AERONAUTICS AND SPACE ADMINISTRATION

Juno II | NASA S-46

FAILUREMar 23, 1960 at 13:35 UTCJuno II →
PADLaunch Complex 26B
SITECape Canaveral SFS, FL, USA →
ORBITMedium Earth Orbit
TYPEEarth Science

Explorer 5 was a United States satellite with a mass of 15.7 kg. It was the last of the original series of Explorers built, designed, and operated by the Jet Propulsion Laboratory.

VEHICLE
Juno II
MISSION
NASA S-46
MISSION TYPE
Earth Science
TARGET ORBIT
Medium Earth Orbit
COUNTRY
USA
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 1bbd65cc-7c3d-495b-b5ae-b8a5827460ea
Reported date: Mar 23, 1960 at 13:35 UTC
Last synced: 3 hours ago
This launch date and time are confirmed by the launch provider. Countdown is active.
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Juno
Jupiter
NASA / JPLOPERATOR
OrbiterTYPE
5.263 AUFROM SUN
EXTENDED MISSION
MANUFACTURER
Army Ballistic Missile Agency
FLIGHTS
10
SUCCESSES
5
SUCCESS RATE
50%

Juno II was an American space launch vehicle used during the late 1950s and early 1960s. It was derived from the Jupiter missile, which was used as the first stage.

When is the Juno II | NASA S-46 launch?
The Juno II | NASA S-46 is scheduled for Wednesday, March 23, 1960 at 1:35 PM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: FAILURE.
What rocket is being used for NASA S-46?
The Juno II | NASA S-46 mission uses the Juno II rocket, manufactured by Army Ballistic Missile Agency. The Juno II has flown 10 times with a 50% success rate.
Where is the Juno II | NASA S-46 launching from?
The launch takes place from Launch Complex 26B at Cape Canaveral SFS, FL, USA.
What orbit is NASA S-46 going to?
The NASA S-46 mission is targeting Medium Earth Orbit.
Who is launching NASA S-46?
The Juno II | NASA S-46 is operated by National Aeronautics and Space Administration.
Can I watch the Juno II | NASA S-46 launch live?
Yes. Visit the launch detail page on Space Launch Live for embedded YouTube webcasts, replay videos, and links to live coverage from SpaceX, NASA, NASASpaceflight, and other channels.
Mar 28, 2026 20:12 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 28, 2026 20:12 UTC
Launch date set: Mar 23, 1960 at 13:35 UTC
NET (No Earlier Than) confirmed by National Aeronautics and Space Administration
Mar 28, 2026 20:12 UTC
Launch failure reported
Updated via Launch Library 2
Last data sync: 3 hours ago
Launch Library 23 hours ago
Launch ID: 1bbd65cc-7c3d-495b-b5ae-b8a5827460ea
Open-Meteo Weather4 hours ago
Pad weather at 28.44, -80.57