United States Air ForceThor Burner 2Space Launch Complex 10W, Vandenberg SFB, CA, USA
DSAP-5A F1
Launched
February 11, 1970
Summary
DSAP-5A F1 launched on an United States Air Force Thor Burner 2 from Space Launch Complex 10W, Vandenberg SFB, CA, USA on February 11, 1970. It was United States Air Force's 514th launch, 5th this year and humanity's 1,060th orbital launch attempt. It was the 9th Thor Burner 2 flight and the 1st this year. The payload was bound for Sun-Synchronous Orbit (SSO). DAPP 1524, one of 2 catalogued objects, reached a 769 × 828 km orbit inclined 98.6°. 2 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Thor Burner 2 · United States Air Force
- Booster
- No booster details on record.
- Mission
- Government/Top Secret · Sun-Synchronous Orbit (SSO)
- Milestone
- 9th Thor Burner 2 flight · 1st this yearUnited States Air Force's 514th launch5th this yearhumanity's 1,060th orbital launch attempt14th orbital launch attempt this year
Flight preview
Orbit: as tracked
DAPP 1524 · NORAD 4331 · 1970-012 · Space-Track · tracking 1 of 2 objects
Show the numbers for orbit elements
- Object
- OPS 0054 (DMSP 5A F1)
- Object ID
- 1970-012A
- Epoch
- 1970-02-11 09:47:48 UTC
- Mean motion
- 14.30186669 rev/day
- Eccentricity
- 0.004111
- Inclination
- 98.6196°
- Ascending node
- 325.9034°
- Arg. of perigee
- 3.8266°
- Mean anomaly
- 356.3173°
- Element set
- 999
- Rev at epoch
- 1
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: SSO. Ascent drawn from padside's representative profile.
Catalogued objects
2 catalogued: 1 payload, 1 rocket stage; 2 still in orbit
- DAPP 1524 · NORAD 4331 · in orbit
Burner II No. 9 · in orbit
Data from J. McDowell, planet4589.org
About this launch
Military meteorological satellite
Pad

Space Launch Complex 10W, Vandenberg SFB, CA, USA
15th launch from Space Launch Complex 10W, 1st this year · 343rd from Vandenberg SFB, CA, USA
31 launches from this pad · 919 from Vandenberg SFB, CA, USA
203 days after the previous launch from this pad
Questions
When did DSAP-5A F1 launch?
DSAP-5A F1 launched on February 11, 1970. The time is known to the hour, not the minute.
Where can I watch DSAP-5A F1?
No webcast is on record for this launch.
What rocket launched DSAP-5A F1?
Thor Burner 2, flown by United States Air Force. Thor Burner 2 spec sheet
Where did DSAP-5A F1 launch from?
Space Launch Complex 10W, Vandenberg SFB, CA, USA.
What orbit did DSAP-5A F1 reach?
DAPP 1524, one of 2 catalogued objects, reached a 769 × 828 km orbit inclined 98.6°.
How many satellites did DSAP-5A F1 launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).