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United States Air ForceAtlas F MSDSpace Launch Complex 3W, Vandenberg SFB, CA, USA

Parcae 2A,B,C & MSD 2

Launched

December 8, 1977

Launch Successful

Summary

Parcae 2A,B,C & MSD 2 launched on an United States Air Force Atlas F MSD from Space Launch Complex 3W, Vandenberg SFB, CA, USA on December 8, 1977. It was United States Air Force's 702nd launch, 22nd this year and humanity's 2,033rd orbital launch attempt. It was the 2nd Atlas F MSD flight and the 1st this year. The payload was bound for low Earth orbit (LEO). OPS 8781, one of 8 catalogued objects, reached a 1,109 × 1,127 km orbit inclined 63.4°. 8 objects from this launch are catalogued, 4 of them payloads.

Watch
No webcast on record.
Vehicle
Atlas F MSD · United States Air Force
Booster
No booster details on record.
Mission
Government/Top Secret · Low Earth Orbit (LEO)
Milestone
2nd Atlas F MSD flight · 1st this yearUnited States Air Force's 702nd launch22nd this yearhumanity's 2,033rd orbital launch attempt118th orbital launch attempt this year

Flight preview

Orbit: as tracked

63.4°Inclination
1109 × 1127 kmPerigee × apogeefrom mean elements
107.5 minPeriodfrom mean elements
63.5°Ascending node
17843 d agoElement epoch1977-12-08 20:43 UTC · stale

OPS 8781 · NORAD 10502 · 1977-112 · Space-Track · tracking 1 of 8 objects

Show the numbers for orbit elements
Object
OPS 8781
Object ID
1977-112A
Epoch
1977-12-08 20:43:10 UTC
Mean motion
13.39573525 rev/day
Eccentricity
0.0011421
Inclination
63.3836°
Ascending node
63.5364°
Arg. of perigee
165.5611°
Mean anomaly
194.6186°
Element set
999
Rev at epoch
2
B*
0.000099999

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

8 catalogued: 4 payloads, 4 components; 8 still in orbit

  • OPS 8781 · NORAD 10502 · in orbit
  • SS 1 · NORAD 10529 · in orbit
  • SS 2 · NORAD 10544 · in orbit
  • SS 3 · NORAD 10594 · in orbit

Data from J. McDowell, planet4589.org

About this launch

The Parcae satellites were passive ELINT satellites. MSD satellites were dispensers of triplets of ocean surveillance satellites.

Pad

Map of Space Launch Complex 3W

Space Launch Complex 3W, Vandenberg SFB, CA, USA

52nd launch from Space Launch Complex 3W, 2nd this year · 455th from Vandenberg SFB, CA, USA

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

168 days after the previous launch from this pad

Questions

When did Parcae 2A,B,C & MSD 2 launch?

Parcae 2A,B,C & MSD 2 launched on December 8, 1977. The time is known to the hour, not the minute.

Where can I watch Parcae 2A,B,C & MSD 2?

No webcast is on record for this launch.

What rocket launched Parcae 2A,B,C & MSD 2?

Atlas F MSD, flown by United States Air Force. Atlas F MSD spec sheet

Where did Parcae 2A,B,C & MSD 2 launch from?

Space Launch Complex 3W, Vandenberg SFB, CA, USA.

What orbit did Parcae 2A,B,C & MSD 2 reach?

OPS 8781, one of 8 catalogued objects, reached a 1,109 × 1,127 km orbit inclined 63.4°.

How many satellites did Parcae 2A,B,C & MSD 2 launch?

4 payloads from this launch are catalogued, 4 of them still in orbit (Data from J. McDowell, planet4589.org).