United States Air ForceDelta 2914Space Launch Complex 17B, Cape Canaveral SFS, FL, USA
ISEE 1 & 2
Launched
October 22, 1977
Image: NASA Kennedy Space Center
Summary
ISEE 1 & 2 launched on an United States Air Force Delta 2914 from Space Launch Complex 17B, Cape Canaveral SFS, FL, USA on October 22, 1977. It was United States Air Force's 699th launch, 19th this year and humanity's 2,022nd orbital launch attempt. It was the 20th Delta 2914 flight and the 6th this year. The payload was bound for Elliptical Orbit (Elliptical). The tracked orbit of ISEE 1, one of 4 catalogued objects, from October 28, 1977, was 344 × 137,901 km inclined 29.0°. 4 objects from this launch are catalogued, 2 of them payloads.
- Watch
- No webcast on record.
- Vehicle
- Delta 2914 · United States Air Force
- Booster
- No booster details on record.
- Mission
- Astrophysics · Elliptical Orbit (Elliptical)
- Milestone
- 20th Delta 2914 flight · 6th this yearUnited States Air Force's 699th launch19th this yearhumanity's 2,022nd orbital launch attempt107th orbital launch attempt this year
Flight preview
Orbit: as tracked
ISEE 1 · NORAD 10422 · 1977-102 · Space-Track · tracking 1 of 4 objects
Show the numbers for orbit elements
- Object
- ISEE 1
- Object ID
- 1977-102A
- Epoch
- 1977-10-28 00:00:00 UTC
- Mean motion
- 0.41854236 rev/day
- Eccentricity
- 0.911057
- Inclination
- 28.954°
- Ascending node
- 57.551°
- Arg. of perigee
- 310.994°
- Mean anomaly
- 89.3726°
- Element set
- 999
- Rev at epoch
- 3
- B*
- 0
Perigee, apogee and period are Kepler figures from the catalogued mean elements, not a propagated state. Published orbit: Elliptical. Ascent drawn from padside's representative profile.
Catalogued objects
4 catalogued: 2 payloads, 2 rocket stages; none still in orbit
- ISEE 1 · NORAD 10422 · re-entered September 26, 1987
- ISEE 2 · NORAD 10423 · re-entered September 26, 1987
Delta 135 · re-entered October 23, 1978
Delta 135 Stage 3 · re-entered October 31, 1987
Data from J. McDowell, planet4589.org
About this launch
Highly eccentric multi-spacecraft astrophysics mission
Pad

Space Launch Complex 17B, Cape Canaveral SFS, FL, USA
61st launch from Space Launch Complex 17B, 5th this year · 333rd from Cape Canaveral SFS, FL, USA
132 launches from this pad · 1,131 from Cape Canaveral SFS, FL, USA
57 days after the previous launch from this pad
Questions
When did ISEE 1 & 2 launch?
ISEE 1 & 2 launched on October 22, 1977. The time is known to the hour, not the minute.
Where can I watch ISEE 1 & 2?
No webcast is on record for this launch.
What rocket launched ISEE 1 & 2?
Delta 2914, flown by United States Air Force. Delta 2914 spec sheet
Where did ISEE 1 & 2 launch from?
Space Launch Complex 17B, Cape Canaveral SFS, FL, USA.
What orbit did ISEE 1 & 2 reach?
The tracked orbit of ISEE 1, one of 4 catalogued objects, from October 28, 1977, was 344 × 137,901 km inclined 29.0°.
How many satellites did ISEE 1 & 2 launch?
2 payloads from this launch are catalogued, none of them still in orbit (Data from J. McDowell, planet4589.org).
