In orbitRocket body

SL-12 R/B(AUX MOTOR)

NORAD: 8546
COSPAR: 1975-123D

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: NPO Energiya
Owner: Strategic Rocket Forces
Platform (bus): SOZ
Mass at launch: 120 kg
Dry mass: 60 kg(estimate, good to about 20%)
Length: 1.1 m
Diameter: 0.5 m
Span with arrays and booms: 1.1 m
Shape: Cyl

From GCAT by Jonathan McDowell (CC BY 4.0), record S08546, checked 2026-11-05. About this source

Launch

Launch date: 1975-12-22
Rocket: Proton-K/DM
Flight: Raduga
Mission name: Gran' No. 11L
Launch site: NIIP-5, LC81/24
Launched by: Strategic Rocket Forces
Rocket performance: Success
Launch designator: 1975-123

From the GCAT launch log, launch 1975-123, checked 2026-11-05. About this source

Catalogue record

Object type: Rocket body
Owner code: CIS
Launch date: 1975-12-22
Period: 360.3 min
Inclination: 46.07°
Apogee: 20,386 km
Perigee: 399 km
Radar cross-section: 0.6729 m²

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

Where it came from

Parent object: SL-12 R/B(2) (NORAD 11568)

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

Everything from this launch

Debris1 in total, 0 still in orbit
Payload1 in total, 1 still in orbit
Rocket body4 in total, 2 still in orbit