Key statistics
Satellite CZ-4 DEB at a glance.
Uptime
9452
Days in orbit
Revolutions
≈ 14.3
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.9
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: 1999-057MW
Object number (NORAD): 27806
Object ID (CCSDS): 27806
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 100.563 minutes
Inclination: 98.9212 deg
SMA: 7163.38 km
Apoapsis: 862.704 km
Periapsis: 707.785 km
RAAN: 261.055 deg
Eccentricy: 0.01081326
Argument of periapsis: 223.7331 deg
Mean anomaly: 135.5249 deg
Mean motion: 14.31943201 rev/day
Mean motion (dot): 0.00000137 rev/day2
B* drag term: 0.00006491071 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, 7:15 p.m. UTC
TLE line 0: 0 CZ-4 DEB
TLE line 1: 1 27806U 99057MW 25241.80215913 .00000137 00000-0 64911-4 0 9992
TLE line 2: 2 27806 98.9212 261.0550 0108133 223.7331 135.5249 14.31943201240713
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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