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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 18 (IMP-1) (NORAD 693) | T-Minus Zero

Satellite

EXPLORER 18 (IMP-1)

1963-046ANORAD 693United States (US)Ops: D

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Catalog

OwnerUnited States (US)

Object typePAY

Launch siteAFETR

Launch designator1963-046

Period5610.65 min

Inclination35.19°

Altitude4,386 km → 192,044 km

SATCAT updated2026-03-04T00:11:00.481+00:00

Orbit (latest)

No orbit elements found yet.