UNITED STATES AIR FORCE
Thor Burner 2 | DSAP-4A F1
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Sep 16, 1966 at 04:36 UTC
▸ Flight profile›
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MISSION OVERVIEW
DSAP-4A (Defense Satellite Application Program Block 4A) was the fourth version of the military meteorological satellites of the Defense Meteorological Satellite Program.
LAUNCH DETAILS
VEHICLE
Thor Burner 2AGENCY
United States Air ForceMISSION
DSAP-4A F1
MISSION TYPE
Earth Science
TARGET ORBIT
Sun-Synchronous Orbit
LAUNCH PAD
Space Launch Complex 10WLAUNCH SITE
Vandenberg SFB, CA, USACOUNTRY
USA
LAUNCH TIME VERIFICATION
CONFIRMEDPrecision: Minute
LAUNCH LIBRARY 2 PRIMARY
API ID: e52848e9-3ba8-4a70-8de9-e1ac37b267e6
Reported date: Sep 16, 1966 at 04:36 UTC
Last synced: 4 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 — Thor Burner 2 →
MANUFACTURER
McDonnell Douglas
VARIANT
Burner 2
FLIGHTS
12
SUCCESSES
12
SUCCESS RATE
100%
The Thor-Burner was an American expendable launch system, a member of the Thor rocket family. It consisted of a Thor missile, with one or two Burner upper stages.
FREQUENTLY ASKED QUESTIONS
When is the Thor Burner 2 | DSAP-4A F1 launch?
The Thor Burner 2 | DSAP-4A F1 is scheduled for Friday, September 16, 1966 at 4:36 AM UTC. This is the NET (No Earlier Than) time and may be subject to change. Current status: SUCCESS.
What rocket is being used for DSAP-4A F1?
The Thor Burner 2 | DSAP-4A F1 mission uses the Thor Burner 2 rocket, manufactured by McDonnell Douglas. The Thor Burner 2 has flown 12 times with a 100% success rate.
Where is the Thor Burner 2 | DSAP-4A F1 launching from?
The launch takes place from Space Launch Complex 10W at Vandenberg SFB, CA, USA.
What orbit is DSAP-4A F1 going to?
The DSAP-4A F1 mission is targeting Sun-Synchronous Orbit.
Who is launching DSAP-4A F1?
The Thor Burner 2 | DSAP-4A F1 is operated by United States Air Force.
Can I watch the Thor Burner 2 | DSAP-4A F1 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 20:52 UTC
Launch added to tracker
Imported from Launch Library 2 API
Mar 28, 2026 20:52 UTC
Launch date set: Sep 16, 1966 at 04:36 UTC
NET (No Earlier Than) confirmed by United States Air Force
Mar 28, 2026 20:52 UTC
Launch completed successfully
Updated via Launch Library 2
LIVE DATA SOURCES
Last data sync: 4 seconds ago
●Launch Library 24 seconds ago
Launch ID: e52848e9-3ba8-4a70-8de9-e1ac37b267e6
●Open-Meteo Weather1 week ago
Pad weather at 34.77, -120.62
Mission Profile
DSAP-4A F1 was a Thor Burner 2 mission operated by United States Air Force that lifted off from Space Launch Complex 10W, Vandenberg SFB, CA, USA on September 16, 1966. The flight carried its payload on a earth science mission to Sun-Synchronous Orbit. The launch was a success.