Key statistics
Satellite CZ-4 DEB at a glance.
Uptime
9458
Days in orbit
Revolutions
≈ 14.6
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.5
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: 1999-057SF
Object number (NORAD): 35327
Object ID (CCSDS): 35327
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 98.59 minutes
Inclination: 98.482 deg
SMA: 7069.374 km
Apoapsis: 743.799 km
Periapsis: 638.68 km
RAAN: 320.515 deg
Eccentricy: 0.00743484
Argument of periapsis: 296.5596 deg
Mean anomaly: 62.7996 deg
Mean motion: 14.60599992 rev/day
Mean motion (dot): 0.00004512 rev/day2
B* drag term: 0.00090281197 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, 11:09 a.m. UTC
TLE line 0: 0 CZ-4 DEB
TLE line 1: 1 35327U 99057SF 25242.46519459 .00004512 00000-0 90281-3 0 9993
TLE line 2: 2 35327 98.4820 320.5150 0074348 296.5596 62.7996 14.60599992670856
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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