In orbitRocket body

SL-12 R/B(2)

NORAD: 21703
COSPAR: 1991-064B

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): Blok DM
Mass at launch: 17,490 kg
Dry mass: 2,440 kg
Total mass with attached parts: 2,440 kg
Length: 6.3 m
Diameter: 3.7 m
Span with arrays and booms: 6.3 m
Shape: Cyl

From GCAT by Jonathan McDowell (CC BY 4.0), record S21703, checked 2026-11-05. About this source

Launch

Launch date: 1991-09-13
Rocket: Proton-K/DM-2
Flight: Kosmos-2155
Mission name: Oko-S F4
Launch site: GIK-5, LC81/23
Launched by: Upravleniye Nachalnika Kosmicheskikh Sredstv
Rocket performance: Success
Launch designator: 1991-064

From the GCAT launch log, launch 1991-064, checked 2026-11-05. About this source

Catalogue record

Object type: Rocket body
Owner code: CIS
Launch date: 1991-09-13
Period: 1441.4 min
Inclination: 13.21°
Apogee: 35,902 km
Perigee: 35,879 km
Radar cross-section: 2.9932 m²

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

Where it came from

Parent object: SL-12 PLAT (NORAD 21704)
Catalogued pieces that came from it: 3

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, 1 still in orbit