United States Air ForceDelta 5920-8Space Launch Complex 2W, Vandenberg SFB, CA, USA
COBE
Launched
November 18, 1989
Image: NASA
Summary
COBE launched on an United States Air Force Delta 5920-8 from Space Launch Complex 2W, Vandenberg SFB, CA, USA on November 18, 1989. It was United States Air Force's 875th launch, 12th this year and humanity's 3,464th orbital launch attempt. It was the 1st Delta 5920-8 flight. The payload was bound for low Earth orbit (LEO). COBE, one of 105 catalogued objects, reached a 895 × 905 km orbit inclined 99.0°. 105 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Delta 5920-8 · United States Air Force
- Booster
- No booster details on record.
- Mission
- Astrophysics · Low Earth Orbit (LEO)
- Milestone
- 1st Delta 5920-8 flightUnited States Air Force's 875th launch12th this yearhumanity's 3,464th orbital launch attempt90th orbital launch attempt this year
Flight preview
Orbit: as tracked
COBE · NORAD 20322 · 1989-089 · Space-Track · tracking 1 of 105 objects
Show the numbers for orbit elements
- Object
- COBE
- Object ID
- 1989-089A
- Epoch
- 1989-11-18 17:16:56 UTC
- Mean motion
- 14.00383338 rev/day
- Eccentricity
- 0.0006737
- Inclination
- 99.0212°
- Ascending node
- 330.3452°
- Arg. of perigee
- 229.3486°
- Mean anomaly
- 131.0751°
- 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: LEO. Ascent drawn from padside's representative profile.
Catalogued objects
105 catalogued: 1 payload, 1 rocket stage, 101 debris, 2 components; 4 still in orbit
- COBE · NORAD 20322 · in orbit
Delta 189 · in orbit
Data from J. McDowell, planet4589.org
About this launch
Cosmology research satellite
Pad

Space Launch Complex 2W, Vandenberg SFB, CA, USA
47th launch from Space Launch Complex 2W, 1st this year · 541st from Vandenberg SFB, CA, USA
99 launches from this pad · 919 from Vandenberg SFB, CA, USA
about 6 years after the previous launch from this pad
Questions
When did COBE launch?
COBE launched on November 18, 1989. The time is known to the hour, not the minute.
Where can I watch COBE?
No webcast is on record for this launch.
What rocket launched COBE?
Delta 5920-8, flown by United States Air Force. Delta 5920-8 spec sheet
Where did COBE launch from?
Space Launch Complex 2W, Vandenberg SFB, CA, USA.
What orbit did COBE reach?
COBE, one of 105 catalogued objects, reached a 895 × 905 km orbit inclined 99.0°.
How many satellites did COBE launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
