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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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STS 51D (NORAD 15641) | T-Minus Zero

Satellite

STS 51D

1985-028ANORAD 15641United States (US)Ops: D

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Catalog

OwnerUnited States (US)

Object typePAY

Launch siteAFETR

Launch designator1985-028

Period92.55 min

Inclination28.52°

Altitude337 km → 462 km

SATCAT updated2026-02-01T03:45:01.721+00:00

Orbit (latest)

No orbit elements found yet.