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National Aeronautics and Space AdministrationScout X-4Launch Area 3, Wallops Flight Facility, Virginia, USA

Explorer 23

Launched

November 6, 1964

Launch Successful

Image: U.S. Air Force

Summary

Explorer 23 launched on a National Aeronautics and Space Administration Scout X-4 from Launch Area 3, Wallops Flight Facility, Virginia, USA on November 6, 1964. It was National Aeronautics and Space Administration's 58th launch, 9th this year and humanity's 379th orbital launch attempt. It was the 7th Scout X-4 flight and the 5th this year. The payload was bound for low Earth orbit (LEO). Explorer 23, one of 5 catalogued objects, reached a 472 × 985 km orbit inclined 51.9°. 5 objects from this launch are catalogued, one of them a payload.

Watch
No webcast on record.
Booster
No booster details on record.
Mission
Materials Science · Low Earth Orbit (LEO)
Milestone
7th Scout X-4 flight · 5th this yearNational Aeronautics and Space Administration's 58th launch9th this yearhumanity's 379th orbital launch attempt86th orbital launch attempt this year

Flight preview

Orbit: as tracked

51.9°Inclination
472 × 985 kmPerigee × apogeefrom mean elements
99.2 minPeriodfrom mean elements
7.8°Ascending node
22623 d agoElement epoch1964-11-06 19:47 UTC · stale

Explorer 23 · NORAD 924 · 1964-074 · Space-Track · tracking 1 of 5 objects

Show the numbers for orbit elements
Object
EXPLORER 23
Object ID
1964-074A
Epoch
1964-11-06 19:47:20 UTC
Mean motion
14.5126247 rev/day
Eccentricity
0.0361468
Inclination
51.9465°
Ascending node
7.7759°
Arg. of perigee
138.3817°
Mean anomaly
224.4249°
Element set
999
Rev at epoch
5
B*
0

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

5 catalogued: 1 payload, 3 debris, 1 component; none still in orbit

  • Explorer 23 · NORAD 924 · re-entered June 29, 1983

Data from J. McDowell, planet4589.org

About this launch

The Explorer 23 or S 55c micrometeoroid satellite was the third in the series of S 55 micrometeoroid satellites orbited by NASA.

Pad

Map of Launch Area 3

Launch Area 3, Wallops Flight Facility, Virginia, USA

13th launch from Launch Area 3, 3rd this year · 24th from Wallops Flight Facility, Virginia, USA

13 launches from this pad · 87 from Wallops Flight Facility, Virginia, USA

80 days after the previous launch from this pad

Questions

When did Explorer 23 launch?

Explorer 23 launched on November 6, 1964. The time is known to the hour, not the minute.

Where can I watch Explorer 23?

No webcast is on record for this launch.

What rocket launched Explorer 23?

Scout X-4, flown by National Aeronautics and Space Administration. Scout X-4 spec sheet

Where did Explorer 23 launch from?

Launch Area 3, Wallops Flight Facility, Virginia, USA.

What orbit did Explorer 23 reach?

Explorer 23, one of 5 catalogued objects, reached a 472 × 985 km orbit inclined 51.9°.

How many satellites did Explorer 23 launch?

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