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United States Air ForceThor Burner 2ASpace Launch Complex 10W, Vandenberg SFB, CA, USA

DMSP-5B F4

Launched

August 17, 1973

Launch Successful

Image: Gunter's Space Page

Summary

DMSP-5B F4 launched on an United States Air Force Thor Burner 2A from Space Launch Complex 10W, Vandenberg SFB, CA, USA on August 17, 1973. It was United States Air Force's 602nd launch, 11th this year and humanity's 1,482nd orbital launch attempt. It was the 4th Thor Burner 2A flight and the 1st this year. The payload was bound for Sun-Synchronous Orbit (SSO). DMSP 7529, one of 2 catalogued objects, reached a 833 × 859 km orbit inclined 98.9°. 2 objects from this launch are catalogued, one of them a payload.

Watch
No webcast on record.
Vehicle
Thor Burner 2A · United States Air Force
Booster
No booster details on record.
Mission
Government/Top Secret · Sun-Synchronous Orbit (SSO)
Milestone
4th Thor Burner 2A flight · 1st this yearUnited States Air Force's 602nd launch11th this yearhumanity's 1,482nd orbital launch attempt60th orbital launch attempt this year

Flight preview

Orbit: as tracked

98.9°Inclination
833 × 859 kmPerigee × apogeefrom mean elements
101.7 minPeriodfrom mean elements
91.9°Ascending node
19418 d agoElement epoch1973-08-17 05:53 UTC · stale

DMSP 7529 · NORAD 6787 · 1973-054 · Space-Track · tracking 1 of 2 objects

Show the numbers for orbit elements
Object
OPS 8364 (DMSP 4)
Object ID
1973-054A
Epoch
1973-08-17 05:53:54 UTC
Mean motion
14.16080977 rev/day
Eccentricity
0.0017657
Inclination
98.8517°
Ascending node
91.866°
Arg. of perigee
234.7695°
Mean anomaly
125.1777°
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

  • DMSP 7529 · NORAD 6787 · in orbit

Burner IIA No. 21 US SV-5 · in orbit

Data from J. McDowell, planet4589.org

About this launch

Military meteorological satellite

Pad

Map of Space Launch Complex 10W

Space Launch Complex 10W, Vandenberg SFB, CA, USA

22nd launch from Space Launch Complex 10W, 1st this year · 402nd from Vandenberg SFB, CA, USA

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

281 days after the previous launch from this pad

Questions

When did DMSP-5B F4 launch?

DMSP-5B F4 launched on August 17, 1973. The time is known to the hour, not the minute.

Where can I watch DMSP-5B F4?

No webcast is on record for this launch.

What rocket launched DMSP-5B F4?

Thor Burner 2A, flown by United States Air Force. Thor Burner 2A spec sheet

Where did DMSP-5B F4 launch from?

Space Launch Complex 10W, Vandenberg SFB, CA, USA.

What orbit did DMSP-5B F4 reach?

DMSP 7529, one of 2 catalogued objects, reached a 833 × 859 km orbit inclined 98.9°.

How many satellites did DMSP-5B F4 launch?

1 payload from this launch is catalogued, still in orbit (Data from J. McDowell, planet4589.org).