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Preparing the latest launch data.

T-Minus Zero

Primary launch schedule data: The Space Devs - Launch Library 2

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EXPLORER 28 (IMP-3) (NORAD 1388) | T-Minus Zero

Satellite

EXPLORER 28 (IMP-3)

1965-042ANORAD 1388United States (US)Ops: D

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Catalog

OwnerUnited States (US)

Object typePAY

Launch siteAFETR

Launch designator1965-042

Period8341.72 min

Inclination53.61°

Altitude32,289 km → 227,451 km

SATCAT updated2026-01-31T04:30:01.218+00:00

Orbit (latest)

No orbit elements found yet.