Key statistics
Satellite CZ-4B R/B at a glance.
Uptime
9336
Days in orbit
Revolutions
≈ 14.4
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.8
Latest
Satellite identification and parameters
Extended collection of information and parameters for CZ-4B R/B.
Object identification
Identified? True
Debris? False
Object name: CZ-4B R/B
International designator: 1999-057C
Object number (NORAD): 25942
Object ID (CCSDS): 25942
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 100.137 minutes
Inclination: 98.7761 deg
SMA: 7143.17 km
Apoapsis: 833.448 km
Periapsis: 696.622 km
RAAN: 165.4289 deg
Eccentricy: 0.0095774
Argument of periapsis: 344.9949 deg
Mean anomaly: 14.84 deg
Mean motion: 14.3802459 rev/day
Mean motion (dot): 0.00000533 rev/day2
B* drag term: 0.00018224 1/REarth
Two-line elements (TLE)
Creation date: May 6, 2025, 3:54 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 5, 2025, 8:57 p.m. UTC
TLE line 0: 0 CZ-4B R/B
TLE line 1: 1 25942U 99057C 25125.87309859 .00000533 00000-0 18224-3 0 9997
TLE line 2: 2 25942 98.7761 165.4289 0095774 344.9949 14.8400 14.38024590337041
Live tracking on map
Real-time ground track for satellite CZ-4B R/B.
Associated space launch
The CBERS (China Brazil Earth Resources Satellite) or ZY 1 (Zi Yuan) satellites are designed for global coverage and include cameras to make optical observations and a data collecting system to gather data on the environment. They are unique systems due to the use of on-board sensors which combine features that are especially designed to resolve the broad range of space and time scales involved in the monitoring and preservation of the ecosystem. They are operated jointly by the China Centre for Resources Satellite Data and Application (CRESDA) and the Brazilian INPE (Instituto Nacional de Pesquisas Espaciais, National Institute of Space Research).
CZ-4B R/B was lifted into orbit during the mission ‘Long March 4B | Zi Yuan 1-1’, on board a Long March 4B space rocket.
The launch took place on Oct. 14, 1999, 3:15 a.m. from Launch Complex 7.
For more information about the launch, click the button.
Long March 4B | Zi Yuan 1-1
Agency: N/A
Status: Launch Successful
Launch date: Oct. 14, 1999, 3:15 a.m. UTC
Rocket: Long March 4B
Launch pad: Launch Complex 7
Location: Taiyuan Satellite Launch Center, People's Republic of China
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
Newsletter sign-up
Weekly statistics, charts and insights to help you stay on top of the space industry.
