Payload
EXPLORER 4
DecayedPayloadLEO
EXPLORER 4 is a United States payload satellite, launched on July 26, 1958 into LEO. It has since re-entered the atmosphere.
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Launch
- Launch date
- July 26, 1958 at 03:00 PM UTC
- Launch site
- Cape Canaveral SFS, USA
- Launched by
- Juno-I →
- Operator
- Army Ballistic Missile Agency
- Mission
- Explorer 4
- Launch record
- View full launch →
Orbit
- Orbit regime
- LEO
- Apoapsis
- 585 km
- Periapsis
- 239 km
- Inclination
- 50.25°
- Orbital period
- 92.81 min
Spacecraft
- Operator
- United States
- Launch mass
- 17.34 kg
Identity
- COSPAR (Int'l)
- 1958-005A
- NORAD catalog №
- 9
- Object type
- Payload
- Owner / operator
United States- Status
- Decayed
- Decay / reentry
- October 23, 1959
End of mission
- Last active / ended
- October 23, 1959
- Time in service
- 1.2 years
- Fate
- Reentered Earth's atmosphere and was destroyed.
- Final status
- Decayed