NATIONAL AERONAUTICS AND SPACE ADMINISTRATION
Scout X-4 | Explorer 19
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Dec 19, 1963 at 18:49 UTC
▸ Flight profile›
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MISSION OVERVIEW
Explorer 19 was the second in a series of 3.66-m inflatable spheres placed into orbit to determine atmospheric densities.
LAUNCH DETAILS
VEHICLE
Scout X-4MISSION
Explorer 19
MISSION TYPE
Earth Science
TARGET ORBIT
Low Earth Orbit
LAUNCH PAD
Space Launch Complex 5LAUNCH SITE
Vandenberg SFB, CA, USACOUNTRY
USA
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: 4187d467-ea7b-4db8-9a84-5d0123f5c2e7
Reported date: Dec 19, 1963 at 18:49 UTC
Last synced: 23 seconds ago
This launch date and time are confirmed by the launch provider. Countdown is active.
LAUNCH MAP
PAD WEATHER
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VEHICLE — Scout X-4 →
MANUFACTURER
Vought
VARIANT
4
FLIGHTS
12
SUCCESSES
11
SUCCESS RATE
91.7%
The Scout family of rockets were were American launch vehicles designed to place small satellites into orbit around the Earth. The Scout multistage rocket was the first orbital launch vehicle to be entirely composed of solid fuel stages.
FREQUENTLY ASKED QUESTIONS
When is the Scout X-4 | Explorer 19 launch?
The Scout X-4 | Explorer 19 is scheduled for Thursday, December 19, 1963 at 6:49 PM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for Explorer 19?
The Scout X-4 | Explorer 19 mission uses the Scout X-4 rocket, manufactured by Vought. The Scout X-4 has flown 12 times with a 91.7% success rate.
Where is the Scout X-4 | Explorer 19 launching from?
The launch takes place from Space Launch Complex 5 at Vandenberg SFB, CA, USA.
What orbit is Explorer 19 going to?
The Explorer 19 mission is targeting Low Earth Orbit.
Who is launching Explorer 19?
The Scout X-4 | Explorer 19 is operated by National Aeronautics and Space Administration.
Can I watch the Scout X-4 | Explorer 19 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.
LAUNCH TIMELINE
Mar 28, 2026 20:13 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 28, 2026 20:13 UTC
Launch date set: Dec 19, 1963 at 18:49 UTC
NET (No Earlier Than) confirmed by National Aeronautics and Space Administration
Mar 28, 2026 20:13 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 23 seconds ago
●Launch Library 223 seconds ago
Launch ID: 4187d467-ea7b-4db8-9a84-5d0123f5c2e7
●Open-Meteo Weather2 days ago
Pad weather at 34.61, -120.62
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Mission Profile
Explorer 19 was a Scout X-4 mission operated by National Aeronautics and Space Administration that lifted off from Space Launch Complex 5, Vandenberg SFB, CA, USA on December 19, 1963. The flight carried its payload on a earth science mission to Low Earth Orbit. The launch was a success.