Trajectory & orbital insertion
Ascent path is a representation — true ascent telemetry isn’t public.
Provider
US Navy
Provider type
Government
Orbit
LEO
Mission type
Earth Science
Launch site
United States of America
Date
Mon, 22 Jun 1959 20:16:09 GMT
Orbital launch #
#40 ever
Mission
Vanguard is a scientific satellite to measure the Earth's magnetic field, solar X-ray radiation and its effects on the Earth's atmosphere and the near-Earth micrometeoroid environment.