United States Air ForceThorad SLV-2G Agena DSpace Launch Complex 1W, Vandenberg SFB, CA, USA
KH-4B 2
Launched
December 9, 1967
Image: NASA
Summary
KH-4B 2 launched on an United States Air Force Thorad SLV-2G Agena D from Space Launch Complex 1W, Vandenberg SFB, CA, USA on December 9, 1967. It was United States Air Force's 432nd launch, 60th this year and humanity's 783rd orbital launch attempt. It was the 8th Thorad SLV-2G Agena D flight and the 6th this year. The payload was bound for low Earth orbit (LEO). It reached a 167 × 248 km orbit inclined 81.6°. One object from this launch is catalogued.
- Watch
- No webcast on record.
- Vehicle
- Thorad SLV-2G Agena D · United States Air Force
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Low Earth Orbit (LEO)
- Milestone
- 8th Thorad SLV-2G Agena D flight · 6th this yearUnited States Air Force's 432nd launch60th this yearhumanity's 783rd orbital launch attempt135th orbital launch attempt this year
Flight preview
Orbit: as tracked
OPS 1001 · NORAD 3063 · 1967-122 · Space-Track
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1967-122A
- Epoch
- 1967-12-10 02:20:14 UTC
- Mean motion
- 16.27162563 rev/day
- Eccentricity
- 0.0061208
- Inclination
- 81.6451°
- Ascending node
- 120.454°
- Arg. of perigee
- 166.871°
- Mean anomaly
- 193.4068°
- Element set
- 999
- Rev at epoch
- 3
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO. Ascent drawn from padside's representative profile.
Catalogued objects
1 catalogued: 1 payload; none still in orbit
- OPS 1001 · NORAD 3063 · re-entered December 25, 1967
Data from J. McDowell, planet4589.org
About this launch
The KH-4B (Keyhole-4B) was sixth optical reconnaissance satellite version in the Corona-program.
Pad

Space Launch Complex 1W, Vandenberg SFB, CA, USA
49th launch from Space Launch Complex 1W, 3rd this year · 285th from Vandenberg SFB, CA, USA
56 launches from this pad · 919 from Vandenberg SFB, CA, USA
85 days after the previous launch from this pad
Questions
When did KH-4B 2 launch?
KH-4B 2 launched on December 9, 1967. The time is known to the hour, not the minute.
Where can I watch KH-4B 2?
No webcast is on record for this launch.
What rocket launched KH-4B 2?
Thorad SLV-2G Agena D, flown by United States Air Force. Thorad SLV-2G Agena D spec sheet
Where did KH-4B 2 launch from?
Space Launch Complex 1W, Vandenberg SFB, CA, USA.
What orbit did KH-4B 2 reach?
It reached a 167 × 248 km orbit inclined 81.6°.
How many satellites did KH-4B 2 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).
![Thorad-SLV2G Agena-D (Nimbus 3) [NASA]](/media?u=https%3A%2F%2Fthespacedevs-prod.nyc3.digitaloceanspaces.com%2Fmedia%2Fimages%2Fthorad-slv2g_ag_image_20251102061406.jpg&w=1600)