In orbitRocket body

TITAN 3C TRANSTAGE R/B

NORAD: 11147
COSPAR: 1978-113D

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: Martin Marietta
Owner: USAF Space and Missile Systems Organization
Platform (bus): Transtage
Mass at launch: 1,950 kg(estimate, good to about 20%)
Dry mass: 1,950 kg(estimate, good to about 20%)
Length: 4.6 m
Diameter: 3.1 m
Span with arrays and booms: 4.6 m
Shape: Cyl + 2 Nozzle

From GCAT by Jonathan McDowell (CC BY 4.0), record S11147, checked 2026-11-05. About this source

Launch

Launch date: 1978-12-14
Rocket: Titan IIIC
Flight: DSCS II 11/12
Mission name: DSCS II C-11
Launch site: CC, LC40
Launched by: USAF Space and Missile Systems Organization
Rocket performance: Success
Launch designator: 1978-113

From the GCAT launch log, launch 1978-113, checked 2026-11-05. About this source

Catalogue record

Object type: Rocket body
Owner code: US
Launch date: 1978-12-14
Period: 1535.9 min
Inclination: 10.45°
Apogee: 38,838 km
Perigee: 36,598 km
Radar cross-section: 3.0502 m²

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

Where it came from

Parent object: TITAN 3C R/B(1) (NORAD 11146)
Catalogued pieces that came from it: 2

The object this one was attached to at launch, or broke off from, as GCAT records it.

Everything from this launch

Debris4 in total, 4 still in orbit
Payload2 in total, 2 still in orbit
Rocket body2 in total, 1 still in orbit