← All launches
Launch SuccessfulUnited States Air Force
Thor Delta D: Syncom 3
Syncom 3 was the first geostationary satellite.
Wednesday, 19 August 1964
Thor Delta D
Mission Data
🇺🇸United States Air ForceEst. 1947
Launch VehicleThor Delta D
Vehicle FamilyThor
Vehicle Record2 of 2 launches (100%)
Provider TypeGovernment
Agency Record972 successes / 106 failures (90%)
Success Streak68 consecutive
Mission TypeCommunications
Target OrbitGeosynchronous Orbit
Launch PadSpace Launch Complex 17A
Location🇺🇸 Cape Canaveral SFS, FL, USA USA
Orbital Launches This Year#56
Agency Launches This Year#32
Launches From This Pad145
Launches From This Site1,132
Status Note
The launch vehicle successfully inserted its payload(s) into the target orbit(s).
About Thor Delta D
American orbital launch vehicle family with Thor first stage and a delta second stage.
Launch Site
Space Launch Complex 17A · 28.4472°N 80.5650°W
Launch data from Launch Library 2 by The Space Devs.