In orbitRocket body

CZ-4B R/B

NORAD: 25942
COSPAR: 1999-057C

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: Shanghai Academy of Space Technology (CASC 8th Acad)
Owner: China National Space Administration
Platform (bus): CZ-4 Stage 3
Mass at launch: 1,000 kg(estimate, good to about 20%)
Dry mass: 1,000 kg(estimate, good to about 20%)
Length: 6.2 m
Diameter: 2.9 m
Span with arrays and booms: 6.2 m
Shape: Cyl

From GCAT by Jonathan McDowell (CC BY 4.0), record S25942, checked 2026-11-05. About this source

Launch

Launch date: 1999-10-14
Rocket: Chang Zheng 4B
Flight: ZY-1/SACI-1
Mission name: ZY-1/CBERS 1
Launch site: TYSC, LC7
Launched by: Shanghai Academy of Space Technology (CASC 8th Acad)
Rocket performance: Success
Launch designator: 1999-057

From the GCAT launch log, launch 1999-057, checked 2026-11-05. About this source

Catalogue record

Object type: Rocket body
Owner code: PRC
Launch date: 1999-10-14
Period: 100.1 min
Inclination: 98.70°
Apogee: 832 km
Perigee: 695 km
Radar cross-section: 5.2324 m²

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

Where it came from

Catalogued pieces that came from it: 345

Everything from this launch

Debris433 in total, 121 still in orbit
Payload2 in total, 2 still in orbit
Rocket body1 in total, 1 still in orbit