Key statistics
Satellite CZ-4 DEB at a glance.
Uptime
9557
Days in orbit
Revolutions
≈ 14.4
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.8
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: 1999-057MT
Object number (NORAD): 27687
Object ID (CCSDS): 27687
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 100.133 minutes
Inclination: 98.7777 deg
SMA: 7142.968 km
Apoapsis: 827.47 km
Periapsis: 702.195 km
RAAN: 19.7625 deg
Eccentricy: 0.00876911
Argument of periapsis: 335.7861 deg
Mean anomaly: 23.9215 deg
Mean motion: 14.38085535 rev/day
Mean motion (dot): 0.00000347 rev/day2
B* drag term: 0.00012494544 1/REarth
Two-line elements (TLE)
Creation date: Dec. 11, 2025, 7:14 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 11, 2025, 8:08 a.m. UTC
TLE line 0: 0 CZ-4 DEB
TLE line 1: 1 27687U 99057MT 25345.33931234 .00000347 00000-0 12495-3 0 9995
TLE line 2: 2 27687 98.7777 19.7625 0087691 335.7861 23.9215 14.38085535226432
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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