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26 October 1973, 02:26 UTC

IMP 8

Delta 1604Cape Canaveral SFS, FL, USA
Drawing of the Delta 1604 for IMP 8

Explorer 50 (IMP-J / IMP-8), NASA’s final Interplanetary Monitoring Platform studying the solar wind, magnetosphere, and cosmic rays from a high Earth orbit. Delta 1604 from Cape Canaveral SLC-17B delivered the long-lived science craft.

Outcome
Success
Orbit
Elliptical
Elliptical orbit
Payload to orbit
398 kg
Flight
2nd
of 2 Delta 1604 flights
Date and time
26 October 1973, 02:26 UTC
Builder
McDonnell Douglas
Launch site
Space Launch Complex 17B, Cape Canaveral SFS, FL, USA
Payload
Astrophysics
International designator
1973-078
Launches in 1973
85th of 116

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