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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 1 (NORAD 4) | T-Minus Zero

Satellite

EXPLORER 1

1958-001ANORAD 4United States (US)Ops: D

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Catalog

OwnerUnited States (US)

Object typePAY

Launch siteAFETR

Launch designator1958-001

Period88.48 min

Inclination33.15°

Altitude183 km → 215 km

SATCAT updated2026-03-02T06:11:01.382+00:00

Orbit (latest)

No orbit elements found yet.