Scout X-4 | ESRS
Operated by United States Air Force, the Earth Science mission Scout X-4 | ESRS delivered its payload into LEO.
- Launch time
- Status
- FAILED
- Operator
- United States Air Force
- Mission type
- Earth Science
- Rocket
- Scout X-4
- Launch site
- Vandenberg SFB, CA, USA
- Launch pad
- Space Launch Complex 5
- Payload
- —
- Target orbit
- LEO

Mission timeline
- 1964-06-25T01:40:24.000ZScout X-4 roars off the pad at Vandenberg SFB, CA, USA.
- The vehicle reaches Max Q, the highest aerodynamic load of the flight.
- Flight anomaly — the mission is unsuccessful.