Mission overview
Small satellite launched into an eccentric orbit with a cosmic ray counter and a micrometeorite detector.
Mission type
Earth Science
Launch complex
Launch Complex 26A · Cape Canaveral SFS, FL, USA
Launch date
March 26, 1958
Launch window
Instantaneous window
Orbit reached
Elliptical Orbit
Launch trajectory
The launch pad has not been identified. No flight path is shown.
Your viewing outlook
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Mission updates
Live updates from our team at the press site will appear here on launch day.