United States Air ForceThor SLV-2A Agena DSpace Launch Complex 1W, Vandenberg SFB, CA, USA
KH-4A 20
Launched
May 18, 1965
Image: Unknown
Summary
KH-4A 20 launched on an United States Air Force Thor SLV-2A Agena D from Space Launch Complex 1W, Vandenberg SFB, CA, USA on May 18, 1965. It was United States Air Force's 257th launch, 26th this year and humanity's 435th orbital launch attempt. It was the 35th Thor SLV-2A Agena D flight and the 5th this year. The payload was bound for low Earth orbit (LEO). OPS 8431, one of 2 catalogued objects, reached a 205 × 336 km orbit inclined 75.0°. 2 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Thor SLV-2A Agena D · United States Air Force
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Low Earth Orbit (LEO)
- Milestone
- 35th Thor SLV-2A Agena D flight · 5th this yearUnited States Air Force's 257th launch26th this yearhumanity's 435th orbital launch attempt42nd orbital launch attempt this year
Flight preview
Orbit: as tracked
OPS 8431 · NORAD 1374 · 1965-037 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- TBA - TO BE ASSIGNED
- Object ID
- 1965-037A
- Epoch
- 1965-05-19 18:57:16 UTC
- Mean motion
- 16.03878392 rev/day
- Eccentricity
- 0.0098423
- Inclination
- 75.0132°
- Ascending node
- 215.0289°
- Arg. of perigee
- 166.4203°
- Mean anomaly
- 193.9506°
- Element set
- 999
- Rev at epoch
- 17
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: LEO.
Catalogued objects
2 catalogued: 1 payload, 1 component; none still in orbit
- OPS 8431 · NORAD 1374 · re-entered June 15, 1965
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 1W, Vandenberg SFB, CA, USA
42nd launch from Space Launch Complex 1W, 2nd this year · 173rd from Vandenberg SFB, CA, USA
56 launches from this pad · 919 from Vandenberg SFB, CA, USA
53 days after the previous launch from this pad
Questions
When did KH-4A 20 launch?
KH-4A 20 launched on May 18, 1965. The time is known to the hour, not the minute.
Where can I watch KH-4A 20?
No webcast is on record for this launch.
What rocket launched KH-4A 20?
Thor SLV-2A Agena D, flown by United States Air Force. Thor SLV-2A Agena D spec sheet
Where did KH-4A 20 launch from?
Space Launch Complex 1W, Vandenberg SFB, CA, USA.
What orbit did KH-4A 20 reach?
OPS 8431, one of 2 catalogued objects, reached a 205 × 336 km orbit inclined 75.0°.
How many satellites did KH-4A 20 launch?
1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).