Key statistics
Satellite CZ-4 DEB at a glance.
Uptime
9453
Days in orbit
Revolutions
≈ 14.6
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.7
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: 1999-057BT
Object number (NORAD): 26181
Object ID (CCSDS): 26181
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 98.351 minutes
Inclination: 98.7048 deg
SMA: 7057.945 km
Apoapsis: 688.869 km
Periapsis: 670.751 km
RAAN: 82.9815 deg
Eccentricy: 0.00128348
Argument of periapsis: 287.8041 deg
Mean anomaly: 91.8876 deg
Mean motion: 14.64149345 rev/day
Mean motion (dot): 0.0000113 rev/day2
B* drag term: 0.0002248336 1/REarth
Two-line elements (TLE)
Creation date: Aug. 31, 2025, 2:26 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Aug. 30, 2025, 7:31 p.m. UTC
TLE line 0: 0 CZ-4 DEB
TLE line 1: 1 26181U 99057BT 25242.81368676 .00001130 00000-0 22483-3 0 9995
TLE line 2: 2 26181 98.7048 82.9815 0012835 287.8041 91.8876 14.64149345355113
Live tracking on map
Real-time ground track for satellite CZ-4 DEB.
In-orbit conjunctions
A list of the most updated potential collisions computed for object 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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