UNITED STATES AIR FORCE
Thor DM-21 Ablestar | Transit 3B & LOFTI-1
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Feb 22, 1961 at 03:45 UTC
▸ Flight profile›
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PADSpace Launch Complex 17B
SITECape Canaveral SFS, FL, USA →LAUNCH DETAILS
VEHICLE
Thor DM-21 AblestarAGENCY
United States Air ForceLAUNCH PAD
Space Launch Complex 17BLAUNCH SITE
Cape Canaveral SFS, FL, USACOUNTRY
USA
LAUNCH TIME VERIFICATION
UNKNOWNPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: c90b2db4-d194-4e68-9a5b-df53234e7a1b
Reported date: Feb 22, 1961 at 03:45 UTC
Last synced: 7 minutes ago
LAUNCH MAP
PAD WEATHER
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VEHICLE — Thor DM-21 Ablestar →
MANUFACTURER
United States Air Force
VARIANT
DM-21
FLIGHTS
19
SUCCESSES
13
SUCCESS RATE
68.4%
The Thor-Ablestar, or Thor Able-Star, also known as Thor-Epsilon was an early American expendable launch system consisting of a PGM-17 Thor missile, with an Ablestar upper stage. It was a member of the Thor family of rockets, and was derived from the Thor-Able.
FREQUENTLY ASKED QUESTIONS
When is the Thor DM-21 Ablestar | Transit 3B & LOFTI-1 launch?
The Thor DM-21 Ablestar | Transit 3B & LOFTI-1 is scheduled for Wednesday, February 22, 1961 at 3:45 AM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: NO GO.
What rocket is being used for Thor DM-21 Ablestar | Transit 3B & LOFTI-1?
The Thor DM-21 Ablestar | Transit 3B & LOFTI-1 mission uses the Thor DM-21 Ablestar rocket, manufactured by United States Air Force. The Thor DM-21 Ablestar has flown 19 times with a 68.4% success rate.
Where is the Thor DM-21 Ablestar | Transit 3B & LOFTI-1 launching from?
The launch takes place from Space Launch Complex 17B at Cape Canaveral SFS, FL, USA.
Who is launching Thor DM-21 Ablestar | Transit 3B & LOFTI-1?
The Thor DM-21 Ablestar | Transit 3B & LOFTI-1 is operated by United States Air Force.
Can I watch the Thor DM-21 Ablestar | Transit 3B & LOFTI-1 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 20:12 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 28, 2026 20:12 UTC
Launch date set: Feb 22, 1961 at 03:45 UTC
NET (No Earlier Than) confirmed by United States Air Force
Mar 28, 2026 20:12 UTC
Launch scrubbed u2014 NO GO
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 7 minutes ago
●Launch Library 27 minutes ago
Launch ID: c90b2db4-d194-4e68-9a5b-df53234e7a1b
●Open-Meteo Weather3 days ago
Pad weather at 28.45, -80.57