Key statistics
Satellite CZ-4 DEB at a glance.
Uptime
9452
Days in orbit
Revolutions
≈ 14.5
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.6
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: 1999-057NC
Object number (NORAD): 28072
Object ID (CCSDS): 28072
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 99.533 minutes
Inclination: 98.6019 deg
SMA: 7114.416 km
Apoapsis: 800.205 km
Periapsis: 672.358 km
RAAN: 297.076 deg
Eccentricy: 0.00898505
Argument of periapsis: 183.6585 deg
Mean anomaly: 198.0255 deg
Mean motion: 14.46751211 rev/day
Mean motion (dot): 0.00001678 rev/day2
B* drag term: 0.00045410638 1/REarth
Two-line elements (TLE)
Creation date: Aug. 30, 2025, 3:38 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Aug. 29, 2025, 9:46 a.m. UTC
TLE line 0: 0 CZ-4 DEB
TLE line 1: 1 28072U 99057NC 25241.40710503 .00001678 00000-0 45411-3 0 9993
TLE line 2: 2 28072 98.6019 297.0760 0089850 183.6585 198.0255 14.46751211177222
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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