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United States Air ForceThorad SLV-2H Agena DSpace Launch Complex 3W, Vandenberg SFB, CA, USA

KH-4B 12

Launched

November 18, 1970

Launch Successful

Image: NASA

Summary

KH-4B 12 launched on an United States Air Force Thorad SLV-2H Agena D from Space Launch Complex 3W, Vandenberg SFB, CA, USA on November 18, 1970. It was United States Air Force's 534th launch, 25th this year and humanity's 1,153rd orbital launch attempt. It was the 7th Thorad SLV-2H Agena D flight and the 4th this year. The payload was bound for low Earth orbit (LEO). OPS 4992, one of 2 catalogued objects, reached a 182 × 233 km orbit inclined 83.0°. 2 objects from this launch are catalogued, all of them payloads.

Watch
No webcast on record.
Vehicle
Thorad SLV-2H Agena D · United States Air Force
Booster
No booster details on record.
Mission
Government/Top Secret · Low Earth Orbit (LEO)
Milestone
7th Thorad SLV-2H Agena D flight · 4th this yearUnited States Air Force's 534th launch25th this yearhumanity's 1,153rd orbital launch attempt107th orbital launch attempt this year

Flight preview

Orbit: as tracked

83.0°Inclination
182 × 233 kmPerigee × apogeefrom mean elements
88.5 minPeriodfrom mean elements
85.0°Ascending node
20420 d agoElement epoch1970-11-18 23:54 UTC · stale

OPS 4992 · NORAD 4721 · 1970-098 · Space-Track · tracking 1 of 2 objects

Show the numbers for orbit elements
Object
TBA - TO BE ASSIGNED
Object ID
1970-098A
Epoch
1970-11-18 23:54:44 UTC
Mean motion
16.27060318 rev/day
Eccentricity
0.0038259
Inclination
82.9887°
Ascending node
85.0113°
Arg. of perigee
203.3694°
Mean anomaly
156.5807°
Element set
999
Rev at epoch
2
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 4992 · NORAD 4721 · re-entered December 11, 1970
  • TOPHAT I · NORAD 4722 · re-entered September 14, 1977

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

Map of Space Launch Complex 3W

Space Launch Complex 3W, Vandenberg SFB, CA, USA

42nd launch from Space Launch Complex 3W, 4th this year · 355th from Vandenberg SFB, CA, USA

81 launches from this pad · 919 from Vandenberg SFB, CA, USA

118 days after the previous launch from this pad

Questions

When did KH-4B 12 launch?

KH-4B 12 launched on November 18, 1970. The time is known to the hour, not the minute.

Where can I watch KH-4B 12?

No webcast is on record for this launch.

What rocket launched KH-4B 12?

Thorad SLV-2H Agena D, flown by United States Air Force. Thorad SLV-2H Agena D spec sheet

Where did KH-4B 12 launch from?

Space Launch Complex 3W, Vandenberg SFB, CA, USA.

What orbit did KH-4B 12 reach?

OPS 4992, one of 2 catalogued objects, reached a 182 × 233 km orbit inclined 83.0°.

How many satellites did KH-4B 12 launch?

2 payloads from this launch are catalogued, none of them still in orbit (Data from J. McDowell, planet4589.org).