May 29, 1965 12:00 pm
Explorer 28
|
Thor Delta C
Cape Canaveral SFS, FL, USA
Days
Hours
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Last Updated:
2026-07-13 20:25:22
Explorer 28 (IMP 3) was a solar-cell and chemical-battery powered spacecraft instrumented for interplanetary and distant magnetospheric studies of energetic particles, cosmic rays, magnetic fields, and plasmas.
Launch Overview
Window Open
12:00 UTC
Window Close
12:00 UTC
Lift Off
May 29, 1965 · 12:00 UTC
Launch Facility
Cape Canaveral SFS, FL, USA
Launch Pad
Space Launch Complex 17B
Target Orbit
Elliptical Orbit
Payload Overview
Customer
United States Air Force
Payload
Explorer 28
Rocket
Thor Delta C
Destination
Elliptical Orbit
Recovery Overview
Landing Location
See Mission Notes
Landing Type
RTLS / Droneship
Explorer 28 (IMP 3) was a solar-cell and chemical-battery powered spacecraft instrumented for interplanetary and distant magnetospheric studies of energetic particles, cosmic rays, magnetic fields, and plasmas.
Height
LEO Payload
Total Launches
Status
United States Air Force
Space Launch Complex 17B
Launch Overview
Window Open
12:00 UTC
Window Close
12:00 UTC
Lift Off
May 29, 1965 · 12:00 UTC
Launch Facility
Cape Canaveral SFS, FL, USA
Launch Pad
Space Launch Complex 17B
Target Orbit
Elliptical Orbit
Payload Overview
Customer
United States Air Force
Payload
Explorer 28
Rocket
Thor Delta C
Destination
Elliptical Orbit
Recovery Overview
Landing Location
See Mission Notes
Landing Type
RTLS / Droneship
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