United States Air ForceThor Delta NSpace Launch Complex 17A, Cape Canaveral SFS, FL, USA
OSO 6
Launched
August 9, 1969
Summary
OSO 6 launched on an United States Air Force Thor Delta N from Space Launch Complex 17A, Cape Canaveral SFS, FL, USA on August 9, 1969. It was United States Air Force's 501st launch, 27th this year and humanity's 999th orbital launch attempt. It was the 4th Thor Delta N flight and the 2nd this year. The payload was bound for low Earth orbit (LEO). OSO 6, one of 2 catalogued objects, reached a 500 × 562 km orbit inclined 33.0°. 2 objects from this launch are catalogued, all of them payloads.
- Watch
- No webcast on record.
- Vehicle
- Thor Delta N · United States Air Force
- Booster
- No booster details on record.
- Mission
- Astrophysics · Low Earth Orbit (LEO)
- Milestone
- 4th Thor Delta N flight · 2nd this yearUnited States Air Force's 501st launch27th this yearhumanity's 999th orbital launch attempt80th orbital launch attempt this year
Flight preview
Orbit: as tracked
OSO 6 · NORAD 4065 · 1969-068 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- OSO 6
- Object ID
- 1969-068A
- Epoch
- 1969-08-10 18:14:04 UTC
- Mean motion
- 15.13973078 rev/day
- Eccentricity
- 0.0045139
- Inclination
- 32.9548°
- Ascending node
- 223.2451°
- Arg. of perigee
- 282.4329°
- Mean anomaly
- 77.1232°
- Element set
- 999
- Rev at epoch
- 22
- 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: 2 payloads; none still in orbit
- OSO 6 · NORAD 4065 · re-entered March 7, 1981
- PAC · NORAD 4066 · re-entered April 28, 1977
Data from J. McDowell, planet4589.org
About this launch
OSO (Orbital Solar Observatory) satellite. Its purpose was to return data on the ultraviolet, X-ray and gamma ray emissions of the sun and galaxy.
Pad

Space Launch Complex 17A, Cape Canaveral SFS, FL, USA
42nd launch from Space Launch Complex 17A, 5th this year · 239th from Cape Canaveral SFS, FL, USA
145 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
14 days after the previous launch from this pad
Questions
When did OSO 6 launch?
OSO 6 launched on August 9, 1969. The time is known to the hour, not the minute.
Where can I watch OSO 6?
No webcast is on record for this launch.
What rocket launched OSO 6?
Thor Delta N, flown by United States Air Force. Thor Delta N spec sheet
Where did OSO 6 launch from?
Space Launch Complex 17A, Cape Canaveral SFS, FL, USA.
What orbit did OSO 6 reach?
OSO 6, one of 2 catalogued objects, reached a 500 × 562 km orbit inclined 33.0°.
How many satellites did OSO 6 launch?
2 payloads from this launch are catalogued, none of them still in orbit (Data from J. McDowell, planet4589.org).