Back to launches
Success

Syncom 3

Thor Delta DUnited States Air ForceSpace Launch Complex 17A
Wednesday, August 19, 1964 · 12:15 PM UTCAdd to Calendar

This mission is complete.

Vehicle

Thor Delta D

Profile →

Vehicle details are not available yet.

HeightN/A
LEO PayloadN/A
Launches1078
Successes972

Provider

United States Air Force

Profile →

Provider details are not available yet.

Mission Brief

Syncom 3 was the first geostationary satellite.

PayloadSyncom 3
OrbitGeosynchronous Orbit
CustomerUnited States Air Force
Stages0
PadSpace Launch Complex 17A, Cape Canaveral SFS, FL, USA

Mission Timeline

14 / 14100%
Site lock

Launch Site

Space Launch Complex 17A, Cape Canaveral SFS, FL, USA

LAUNCH SITE
28.447°N, 80.565°W

Schedule History

No delays or schedule changes recorded.

Upcoming Launches

Long March 2F/G rocket
Go

Shenzhou 23

Long March 2F/G
China Aerospace Science and Technology Corporation
Launch Area 91 (SLS-1 / 921)
May 24, 2026 · 03:08 PM UTC
00
00
00
00
Falcon 9 Block 5 rocket
Go

Starlink Group 10-47

Falcon 9 Block 5
SpaceX
Space Launch Complex 40
May 25, 2026 · 11:41 AM UTC
00
00
00
00
Falcon 9 Block 5 rocket
Go

Starlink Group 17-37

Falcon 9 Block 5
SpaceX
Space Launch Complex 4E
May 26, 2026 · 02:00 PM UTC
00
00
00
00

More from United States Air Force

Delta II 7925-9.5 rocket
Success

GPS IIR-16(M)

Delta II 7925-9.5
United States Air Force
Space Launch Complex 17A
Nov 17, 2006 · 07:12 PM UTC
Success
Delta IV M rocket
Success

DMSP F-17

Delta IV M
United States Air Force
Space Launch Complex 6
Nov 4, 2006 · 01:53 PM UTC
Success
Delta II 7925-10L rocket
Success

STEREO A & B

Delta II 7925-10L
United States Air Force
Space Launch Complex 17B
Oct 26, 2006 · 12:52 AM UTC
Success