Scout X-4 | Explorer 23
Operated by National Aeronautics and Space Administration, the Materials Science mission Scout X-4 | Explorer 23 delivered its payload into LEO.
- Launch time
- Status
- SUCCESS
- Operator
- National Aeronautics and Space Administration
- Mission type
- Materials Science
- Rocket
- Scout X-4
- Launch site
- Wallops Flight Facility, Virginia, USA
- Launch pad
- Launch Area 3
- Payload
- —
- Target orbit
- LEO

Mission timeline
- 1964-11-06T12:02:01.000ZScout X-4 clears the pad at Wallops Flight Facility, Virginia, USA and begins its ascent.
- Scout X-4 pushes through the region of maximum dynamic pressure.
- First stage completes its burn; main engine cutoff.
- First and second stages separate on schedule.
- Second-stage ignition confirmed.
- Orbital insertion burn complete; now in LEO.
- Mission declared a complete success.