United States Air ForceThorad SLV-2G Agena DSpace Launch Complex 1E, Vandenberg SFB, CA, USA
KH-4A 46
Launched
March 14, 1968
Image: NASA
Summary
KH-4A 46 launched on an United States Air Force Thorad SLV-2G Agena D from Space Launch Complex 1E, Vandenberg SFB, CA, USA on March 14, 1968. It was United States Air Force's 442nd launch, 9th this year and humanity's 810th orbital launch attempt. It was the 10th Thorad SLV-2G Agena D flight and the 2nd this year. The payload was bound for low Earth orbit (LEO). OPS 4849, one of 2 catalogued objects, reached a 188 × 395 km orbit inclined 83.0°. 2 objects from this launch are catalogued, all of them payloads.
- 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
- 10th Thorad SLV-2G Agena D flight · 2nd this yearUnited States Air Force's 442nd launch9th this yearhumanity's 810th orbital launch attempt22nd orbital launch attempt this year
Flight preview
Orbit: as tracked
OPS 4849 · NORAD 3152 · 1968-020 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1968-020A
- Epoch
- 1968-03-15 06:30:19 UTC
- Mean motion
- 15.96250038 rev/day
- Eccentricity
- 0.0155321
- Inclination
- 83.0402°
- Ascending node
- 207.6469°
- Arg. of perigee
- 168.9042°
- Mean anomaly
- 191.5606°
- Element set
- 999
- Rev at epoch
- 6
- 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
2 catalogued: 2 payloads; none still in orbit
- OPS 4849 · NORAD 3152 · re-entered April 10, 1968
- LAMPAN I · NORAD 3153 · re-entered January 3, 1970
Data from J. McDowell, planet4589.org
About this launch
The KH-4A (Keyhole-4A) was the fifth optical reconnaissance satellite version in the Corona-program.
Pad

Space Launch Complex 1E, Vandenberg SFB, CA, USA
43rd launch from Space Launch Complex 1E, 2nd this year · 292nd from Vandenberg SFB, CA, USA
45 launches from this pad · 919 from Vandenberg SFB, CA, USA
49 days after the previous launch from this pad
Questions
When did KH-4A 46 launch?
KH-4A 46 launched on March 14, 1968. The time is known to the hour, not the minute.
Where can I watch KH-4A 46?
No webcast is on record for this launch.
What rocket launched KH-4A 46?
Thorad SLV-2G Agena D, flown by United States Air Force. Thorad SLV-2G Agena D spec sheet
Where did KH-4A 46 launch from?
Space Launch Complex 1E, Vandenberg SFB, CA, USA.
What orbit did KH-4A 46 reach?
OPS 4849, one of 2 catalogued objects, reached a 188 × 395 km orbit inclined 83.0°.
How many satellites did KH-4A 46 launch?
2 payloads from this launch are catalogued, none of them still 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)