Key statistics
Satellite CZ-4 DEB at a glance.
Uptime
9398
Days in orbit
Revolutions
≈ 14.7
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.5
Latest
Satellite identification and parameters
Extended collection of information and parameters for CZ-4 DEB.
Object identification
Identified? True
Debris? True
Object name: CZ-4 DEB
International designator: 1999-057SK
Object number (NORAD): 35331
Object ID (CCSDS): 35331
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 97.943 minutes
Inclination: 98.541 deg
SMA: 7038.414 km
Apoapsis: 715.068 km
Periapsis: 605.489 km
RAAN: 277.9563 deg
Eccentricy: 0.0077844
Argument of periapsis: 334.2471 deg
Mean anomaly: 177.8037 deg
Mean motion: 14.70247966 rev/day
Mean motion (dot): 0.00004932 rev/day2
B* drag term: 0.00078953 1/REarth
Two-line elements (TLE)
Creation date: July 4, 2025, 3:20 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 3, 2025, 5:44 p.m. UTC
TLE line 0: 0 CZ-4 DEB
TLE line 1: 1 35331U 99057SK 25184.73922531 .00004932 00000-0 78953-3 0 9990
TLE line 2: 2 35331 98.5410 277.9563 0077844 334.2471 177.8037 14.70247966606895
Live tracking on map
Real-time ground track for satellite CZ-4 DEB.
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-4 DEB 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
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