Thorad SLV-2H Agena D — mission imagery
Back to launches
Success

KH-4B 10

Thorad SLV-2H Agena DUnited States Air ForceSpace Launch Complex 3W
Wednesday, May 20, 1970 · 09:35 PM UTC
Add to calendar

This mission is complete.

Mission Brief

The KH-4B (Keyhole-4B) was sixth optical reconnaissance satellite version in the Corona-program.

PayloadKH-4B 10
OrbitLow Earth Orbit
CustomerUnited States Air Force
StagesUnknown
PadSpace Launch Complex 3W, Vandenberg SFB, CA, USA

Mission Timeline

14 / 14100%

Ground vector

Launch site

Site locked

Space Launch Complex 3W

Vandenberg SFB, CA, USA

Global range
SITE LOCK
Latitude
34.644°N
Longitude
120.593°W

Range Weather

Launch commit criteria

Clear
Watch
TrackingNo active constraints
Weather Rules

Tracking no weather issues at this time.

Primary concern
No weather issues
Rule count
0
Temperature
Not reported
Surface wind
Not reported
Window

09:35 PM UTC - 09:35 PM UTC

Vehicle

Thorad SLV-2H Agena D

Profile →
HeightN/A
LEO PayloadN/A
Launches1,078
Successes972

Provider

United States Air Force

Profile →

Schedule History

No meaningful launch-time or status changes recorded.

Related Launches

Falcon 9 Block 5 rocketManifest / 01
Go

Starlink Group 15-20

Falcon 9 Block 5
ProviderSpaceX
PadSpace Launch Complex 4E
DateAug 22, 2026
Time (UTC)07:25 AM UTC
Launch clockT– to liftoff
T-
00
:
01
:
13
:
39
Confirmed to the minute
Long March 5 rocketManifest / 02
Go

Chang'e 7

Long March 5
ProviderChina Aerospace Science and Technology Corporation
Pad101
DateAug 24, 2026
PrecisionAbout 12:05 AM UTC
Schedule watchTracking updates
T– about 1d 18hWindow opens 12:00 AM UTC
Delta II 7925-9.5 rocketManifest / 03
Success

GPS IIR-16(M)

Delta II 7925-9.5
ProviderUnited States Air Force
PadSpace Launch Complex 17A
DateNov 17, 2006
Time (UTC)07:12 PM UTC
Success