Key statistics
Satellite CZ-4B R/B at a glance.
Uptime
5048
Days in orbit
Revolutions
≈ 15.1
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.5
Latest
Satellite identification and parameters
Extended collection of information and parameters for CZ-4B R/B.
Object identification
Identified? True
Debris? False
Object name: CZ-4B R/B
International designator: 2011-079B
Object number (NORAD): 38039
Object ID (CCSDS): 38039
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 95.213 minutes
Inclination: 98.4634 deg
SMA: 6907.039 km
Apoapsis: 620.269 km
Periapsis: 437.54 km
RAAN: 95.2069 deg
Eccentricy: 0.01322776
Argument of periapsis: 106.1506 deg
Mean anomaly: 255.4328 deg
Mean motion: 15.1239371 rev/day
Mean motion (dot): 0.00009068 rev/day2
B* drag term: 0.00042550528 1/REarth
Two-line elements (TLE)
Creation date: Oct. 15, 2025, 6:23 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 15, 2025, 11:22 a.m. UTC
TLE line 0: 0 CZ-4B R/B
TLE line 1: 1 38039U 11079B 25288.47363306 .00009068 00000-0 42551-3 0 9991
TLE line 2: 2 38039 98.4634 95.2069 0132278 106.1506 255.4328 15.12393710752793
Live tracking on map
Real-time ground track for satellite CZ-4B R/B.
Associated space launch
CZ-4B R/B was lifted into orbit during the mission ‘Long March 4B | Zi Yuan 1-02C’, on board a Long March 4B space rocket.
The launch took place on Dec. 22, 2011, 3:26 a.m. from Launch Complex 7.
For more information about the launch, click the button.
Long March 4B | Zi Yuan 1-02C
Agency: N/A
Status: Launch Successful
Launch date: Dec. 22, 2011, 3:26 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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