United States Air ForceDelta 2914Space Launch Complex 17A, Cape Canaveral SFS, FL, USA
IUE
Launched
January 26, 1978
Image: NASA Kennedy Space Center
Summary
IUE launched on an United States Air Force Delta 2914 from Space Launch Complex 17A, Cape Canaveral SFS, FL, USA on January 26, 1978. It was United States Air Force's 706th launch, 2nd this year and humanity's 2,057th orbital launch attempt. It was the 23rd Delta 2914 flight and the 1st this year. The payload was bound for Medium Earth Orbit (MEO). IUE, one of 5 catalogued objects, reached a 25,676 × 45,894 km orbit inclined 28.6°. 5 objects from this launch are catalogued, one of them a payload.
- Watch
- No webcast on record.
- Vehicle
- Delta 2914 · United States Air Force
- Booster
- No booster details on record.
- Mission
- Astrophysics · Medium Earth Orbit (MEO)
- Milestone
- 23rd Delta 2914 flight · 1st this yearUnited States Air Force's 706th launch2nd this yearhumanity's 2,057th orbital launch attempt12th orbital launch attempt this year
Flight preview
Orbit: as tracked
IUE · NORAD 10637 · 1978-012 · Space-Track · tracking 1 of 5 objects
Show the numbers for orbit elements
- Object
- IUE
- Object ID
- 1978-012A
- Epoch
- 1978-01-28 06:02:55 UTC
- Mean motion
- 1.00303537 rev/day
- Eccentricity
- 0.239798
- Inclination
- 28.633°
- Ascending node
- 208.094°
- Arg. of perigee
- 257.045°
- Mean anomaly
- 46.543°
- Element set
- 999
- Rev at epoch
- 2
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: MEO.
Catalogued objects
5 catalogued: 1 payload, 2 rocket stages, 2 components; 3 still in orbit
- IUE · NORAD 10637 · in orbit
Delta 138 · re-entered February 21, 1978
Delta 138 Stage 3 · re-entered February 21, 2025
Data from J. McDowell, planet4589.org
About this launch
UV astronomical obsrvatory used as an international facility
Pad

Space Launch Complex 17A, Cape Canaveral SFS, FL, USA
63rd launch from Space Launch Complex 17A, 1st this year · 338th from Cape Canaveral SFS, FL, USA
145 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
64 days after the previous launch from this pad
Questions
When did IUE launch?
IUE launched on January 26, 1978. The time is known to the hour, not the minute.
Where can I watch IUE?
No webcast is on record for this launch.
What rocket launched IUE?
Delta 2914, flown by United States Air Force. Delta 2914 spec sheet
Where did IUE launch from?
Space Launch Complex 17A, Cape Canaveral SFS, FL, USA.
What orbit did IUE reach?
IUE, one of 5 catalogued objects, reached a 25,676 × 45,894 km orbit inclined 28.6°.
How many satellites did IUE launch?
1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).
