Key statistics
Satellite CZ-4 DEB at a glance.
Uptime
9558
Days in orbit
Revolutions
≈ 13.6
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
99.0
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: 1999-057R
Object number (NORAD): 26129
Object ID (CCSDS): 26129
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: MEDIUM
Orbital parameters
Period: 105.813 minutes
Inclination: 99.0049 deg
SMA: 7410.605 km
Apoapsis: 1356.053 km
Periapsis: 708.887 km
RAAN: 180.5192 deg
Eccentricy: 0.0436649
Argument of periapsis: 276.787 deg
Mean anomaly: 78.3787 deg
Mean motion: 13.60887616 rev/day
Mean motion (dot): 0.00001781 rev/day2
B* drag term: 0.0012763566 1/REarth
Two-line elements (TLE)
Creation date: Dec. 12, 2025, 10:14 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 12, 2025, 6:09 a.m. UTC
TLE line 0: 0 CZ-4 DEB
TLE line 1: 1 26129U 99057R 25346.25655419 .00001781 00000-0 12764-2 0 9996
TLE line 2: 2 26129 99.0049 180.5192 0436649 276.7870 78.3787 13.60887616272803
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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