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Launch SuccessfulUnited States Air Force
Thor Burner 2: DSAP-4B F1
DSAP-4B (Defense Satellite Application Program Block 4B) was the sixth version of the military meteorological satellites of the Defense Meteorological Satellite Program.
Thursday, 23 May 1968
Thor Burner 2
Mission Data
🇺🇸United States Air ForceEst. 1947
Launch VehicleThor Burner 2
Vehicle FamilyThor
Vehicle Record12 of 12 launches (100%)
Provider TypeGovernment
Agency Record972 successes / 106 failures (90%)
Success Streak68 consecutive
Mission TypeEarth Science
Target OrbitSun-Synchronous Orbit
Launch PadSpace Launch Complex 10W
Location🇺🇸 Vandenberg SFB, CA, USA USA
Orbital Launches This Year#47
Agency Launches This Year#14
Launches From This Pad31
Launches From This Site923
Status Note
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
About Thor Burner 2
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.
Launch Site
Space Launch Complex 10W · 34.7653°N 120.6244°W
Launch data from Launch Library 2 by The Space Devs.