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United States Air ForceDelta 1900Space Launch Complex 2W, Vandenberg SFB, CA, USA

AE-C

Launched

December 16, 1973

Launch Successful

Image: NASA

Summary

AE-C launched on an United States Air Force Delta 1900 from Space Launch Complex 2W, Vandenberg SFB, CA, USA on December 16, 1973. It was United States Air Force's 612th launch, 21st this year and humanity's 1,530th orbital launch attempt. It was the 1st Delta 1900 flight. The payload was bound for Elliptical Orbit (Elliptical). AE-C, one of 2 catalogued objects, reached a 162 × 4,313 km orbit inclined 68.1°. 2 objects from this launch are catalogued, one of them a payload.

Watch
No webcast on record.
Vehicle
Delta 1900 · United States Air Force
Booster
No booster details on record.
Mission
Earth Science · Elliptical Orbit (Elliptical)
Milestone
1st Delta 1900 flightUnited States Air Force's 612th launch21st this yearhumanity's 1,530th orbital launch attempt108th orbital launch attempt this year

Flight preview

Orbit: as tracked

68.1°Inclination
162 × 4313 kmPerigee × apogeefrom mean elements
132.5 minPeriodfrom mean elements
254.5°Ascending node
19297 d agoElement epoch1973-12-16 09:55 UTC · stale

AE-C · NORAD 6977 · 1973-101 · Space-Track · tracking 1 of 2 objects

Show the numbers for orbit elements
Object
EXPLORER 51 (AE-C)
Object ID
1973-101A
Epoch
1973-12-16 09:55:21 UTC
Mean motion
10.86992264 rev/day
Eccentricity
0.2411347
Inclination
68.1158°
Ascending node
254.4642°
Arg. of perigee
166.3964°
Mean anomaly
201.5979°
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: Elliptical. Ascent drawn from padside's representative profile.

Catalogued objects

2 catalogued: 1 payload, 1 rocket stage; none still in orbit

  • AE-C · NORAD 6977 · re-entered December 12, 1978

Delta 99 · re-entered August 14, 1974

Data from J. McDowell, planet4589.org

About this launch

Scientific satellite dedicated to photochemical processes in the Earth's atmosphere

Pad

Map of Space Launch Complex 2W

Space Launch Complex 2W, Vandenberg SFB, CA, USA

30th launch from Space Launch Complex 2W, 3rd this year · 408th from Vandenberg SFB, CA, USA

99 launches from this pad · 919 from Vandenberg SFB, CA, USA

39 days after the previous launch from this pad

Questions

When did AE-C launch?

AE-C launched on December 16, 1973. The time is known to the hour, not the minute.

Where can I watch AE-C?

No webcast is on record for this launch.

What rocket launched AE-C?

Delta 1900, flown by United States Air Force. Delta 1900 spec sheet

Where did AE-C launch from?

Space Launch Complex 2W, Vandenberg SFB, CA, USA.

What orbit did AE-C reach?

AE-C, one of 2 catalogued objects, reached a 162 × 4,313 km orbit inclined 68.1°.

How many satellites did AE-C launch?

1 payload from this launch is catalogued, no longer in orbit (Data from J. McDowell, planet4589.org).