In orbitRocket body

M-3S2 R/B(2)

NORAD: 15465
COSPAR: 1985-001B

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: Nissan Motor Co Ltd
Owner: Institute of Space and Astronautical Sci
Platform (bus): KM
Mass at launch: 465 kg
Dry mass: 47 kg
Length: 1.2 m
Diameter: 0.8 m
Span with arrays and booms: 1.2 m
Shape: Sphere + Cone

From GCAT by Jonathan McDowell (CC BY 4.0), record S15465, checked 2026-11-05. About this source

Launch

Launch date: 1985-01-07
Rocket: Mu-3S-II
Flight: Sakigake/KM-P
Mission name: MS-T5
Launch site: KASC, M1
Launched by: Institute of Space and Aeronautical Sci
Rocket performance: Success
Launch designator: 1985-001

From the GCAT launch log, launch 1985-001, checked 2026-11-05. About this source

Catalogue record

Object type: Rocket body
Owner code: JPN
Launch date: 1985-01-07
Orbits: the Sun

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

Where it came from

Parent object: M-3S2 R/B(1) (NORAD 15466)
Catalogued pieces that came from it: 1

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

Everything from this launch

Payload1 in total, 1 still in orbit
Rocket body2 in total, 1 still in orbit