Trajectory & orbital insertion
Ascent path is a representation — true ascent telemetry isn’t public.
Provider
United States Air Force
Provider type
Government
Orbit
Elliptical
Mission type
Astrophysics
Launch site
United States of America
Date
Sun, 04 Oct 1964 03:45:00 GMT
Orbital launch #
#363 ever
Mission
Explorer 21 (IMP 2) 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.