United States Air ForceThor DM-21 Agena-BSpace Launch Complex 1W, Vandenberg SFB, CA, USA
KH-5 4
Launched
July 21, 1961
Image: USAF
Summary
KH-5 4 launched on an United States Air Force Thor DM-21 Agena-B from Space Launch Complex 1W, Vandenberg SFB, CA, USA on July 21, 1961. The mission failed. It was United States Air Force's 52nd launch, 14th this year and humanity's 117th orbital launch attempt. It was the 12th Thor DM-21 Agena-B flight and the 8th this year. The payload was bound for low Earth orbit (LEO).
- Watch
- No webcast on record.
- Vehicle
- Thor DM-21 Agena-B · United States Air Force
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Low Earth Orbit (LEO)
- Milestone
- 12th Thor DM-21 Agena-B flight · 8th this yearUnited States Air Force's 52nd launch14th this yearhumanity's 117th orbital launch attempt24th orbital launch attempt this year
Flight preview
About this launch
KH-5 (Keyhole 5, codenamed Argon) was the area survey component of the Corona program.
Pad

Space Launch Complex 1W, Vandenberg SFB, CA, USA
14th launch from Space Launch Complex 1W, 4th this year · 30th from Vandenberg SFB, CA, USA
56 launches from this pad · 919 from Vandenberg SFB, CA, USA
43 days after the previous launch from this pad
Questions
When did KH-5 4 launch?
KH-5 4 launched on July 21, 1961. The time is known to the hour, not the minute.
Where can I watch KH-5 4?
No webcast is on record for this launch.
What rocket launched KH-5 4?
Thor DM-21 Agena-B, flown by United States Air Force. Thor DM-21 Agena-B spec sheet
Where did KH-5 4 launch from?
Space Launch Complex 1W, Vandenberg SFB, CA, USA.
What orbit was KH-5 4 going to?
Low Earth Orbit (LEO), a government/top secret mission.
