In orbitRocket body

SL-16 R/B

NORAD: 25861
COSPAR: 1999-039B

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: Southern SDB
Owner: Russian Strategic Rocket Forces
Platform (bus): 11S772
Mass at launch: 9,000 kg
Dry mass: 8,300 kg
Total mass with attached parts: 8,300 kg
Length: 10.4 m
Diameter: 3.9 m
Span with arrays and booms: 10.4 m
Shape: Cyl

From GCAT by Jonathan McDowell (CC BY 4.0), record S25861, checked 2026-11-05. About this source

Launch

Launch date: 1999-07-17
Rocket: Zenit-2
Flight: Okean-O No. 1L
Mission name: Okean-O No. 1
Launch site: GIK-5, LC45/1
Launched by: Russian Strategic Rocket Forces
Rocket performance: Success
Launch designator: 1999-039

From the GCAT launch log, launch 1999-039, checked 2026-11-05. About this source

Catalogue record

Object type: Rocket body
Owner code: CIS
Launch date: 1999-07-17
Period: 97.2 min
Inclination: 97.97°
Apogee: 633 km
Perigee: 613 km
Radar cross-section: 12.344 m²

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

Where it came from

Catalogued pieces that came from it: 5

Everything from this launch

Debris4 in total, 4 still in orbit
Payload1 in total, 1 still in orbit
Rocket body1 in total, 1 still in orbit