Back to launches
Failure

Discoverer 12

Thor Agena AUnited States Air ForceSpace Launch Complex 1W
Wednesday, June 29, 1960 · 10:00 PM UTCAdd to Calendar

This mission is complete.

Vehicle

Thor Agena A

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

Discoverer 12 was an American optical reconnaissance satellite. The fourth of five test flights of the Corona KH-1 spy satellite series. It was lost when the second stage failed during launch.

PayloadDiscoverer 12
OrbitLow Earth Orbit
CustomerUnited States Air Force
Stages0
PadSpace Launch Complex 1W, Vandenberg SFB, CA, USA

Mission Timeline

14 / 14100%
Site lock

Launch Site

Space Launch Complex 1W, Vandenberg SFB, CA, USA

LAUNCH SITE
34.757°N, 120.630°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