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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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ERS-1 (NORAD 21574) | T-Minus Zero

Satellite

ERS-1

1991-050ANORAD 21574European Space Agency (ESA)Ops: -

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Catalog

OwnerEuropean Space Agency (ESA)

Object typePAY

Launch siteFRGUI

Launch designator1991-050

Period100.04 min

Inclination98.79°

Altitude738 km → 783 km

RCS10.323 m²

SATCAT updated2026-05-27T12:11:21.383+00:00

Groups

visual

Orbit (latest)

Epoch2026-06-09T00:46:41.460384+00:00

Inclination98.7798°

RAAN180.5311°

Eccentricity0.0030771

Mean motion14.395119 rev/day

Sourcegp

Fetched2026-06-09T12:11:31.263+00:00