Key statistics
Satellite CZ-4 DEB at a glance.
Uptime
7994
Days in orbit
Revolutions
≈ 14.4
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: 2003-049D
Object number (NORAD): 31131
Object ID (CCSDS): 31131
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: SMALL
Orbital parameters
Period: 100.16 minutes
Inclination: 98.8711 deg
SMA: 7144.246 km
Apoapsis: 852.764 km
Periapsis: 679.458 km
RAAN: 270.846 deg
Eccentricy: 0.01212908
Argument of periapsis: 189.6207 deg
Mean anomaly: 200.9827 deg
Mean motion: 14.37699659 rev/day
Mean motion (dot): 0.00001556 rev/day2
B* drag term: 0.00049062236 1/REarth
Two-line elements (TLE)
Creation date: Sept. 8, 2025, 9:49 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 8, 2025, 12:06 a.m. UTC
TLE line 0: 0 CZ-4 DEB
TLE line 1: 1 31131U 03049D 25251.00450088 .00001556 00000-0 49062-3 0 9996
TLE line 2: 2 31131 98.8711 270.8460 0121291 189.6207 200.9827 14.37699659959146
Live tracking on map
Real-time ground track for satellite CZ-4 DEB.
Associated space launch
The satellite is China's first operational civilian remote-sensing satellite, specifically designed for the Chinese Ministry of Land and Resources (MLR).
CZ-4 DEB was lifted into orbit during the mission ‘Long March 4B | Zi Yuan 1-2’, on board a Long March 4B space rocket.
The launch took place on Oct. 21, 2003, 3:16 a.m. from Launch Complex 7.
For more information about the launch, click the button.
Long March 4B | Zi Yuan 1-2
Agency: N/A
Status: Launch Successful
Launch date: Oct. 21, 2003, 3:16 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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