In orbitRocket body

TITAN 4B CENTAUR R/B

NORAD: 25337
COSPAR: 1998-029B

OrbitalWiki publishes live orbits for active satellites only. This object is in the full catalogue: who launched it, what it is and its last published orbit are below, but there are no current orbital elements for it here.

Spacecraft

Built by: Lockheed Martin Astronautics
Owner: US Air Force Space and Missile Center
Platform (bus): Centaur T
Mass at launch: 17,900 kg(estimate, good to about 20%)
Dry mass: 2,775 kg(estimate, good to about 20%)
Total mass with attached parts: 2,775 kg(estimate, good to about 20%)
Length: 9 m
Diameter: 4.3 m
Span with arrays and booms: 9 m
Shape: Cyl

From GCAT by Jonathan McDowell (CC BY 4.0), record S25337, checked 2026-11-05. About this source

Launch

Launch date: 1998-05-09
Rocket: Titan 401B/Centaur
Flight: USA 139 [RH8]
Mission name: ORION 4
Launch site: CC, LC40
Launched by: 3SLS/AFSMC
Rocket performance: Success
Launch designator: 1998-029

From the GCAT launch log, launch 1998-029, checked 2026-11-05. About this source

Catalogue record

Object type: Rocket body
Owner code: US
Launch date: 1998-05-09
Period: 1436.4 min
Inclination: 7.54°
Apogee: 35,986 km
Perigee: 35,598 km

From CelesTrak SATCAT, checked 2026-11-05. About this source

Where it came from

Catalogued pieces that came from it: 1

Everything from this launch

Payload1 in total, 1 still in orbit
Rocket body1 in total, 1 still in orbit