Key statistics
Satellite CZ-4B R/B at a glance.
Uptime
5077
Days in orbit
Revolutions
≈ 14.4
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
99.5
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: 2011-043B
Object number (NORAD): 37782
Object ID (CCSDS): 37782
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 100.064 minutes
Inclination: 99.4561 deg
SMA: 7139.683 km
Apoapsis: 897.179 km
Periapsis: 625.918 km
RAAN: 36.9757 deg
Eccentricy: 0.0189967
Argument of periapsis: 59.9029 deg
Mean anomaly: 302.0839 deg
Mean motion: 14.39078003 rev/day
Mean motion (dot): 0.00000182 rev/day2
B* drag term: 0.000063475 1/REarth
Two-line elements (TLE)
Creation date: July 8, 2025, 2:27 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 7, 2025, 7:58 p.m. UTC
TLE line 0: 0 CZ-4B R/B
TLE line 1: 1 37782U 11043B 25188.83232713 .00000182 00000-0 63475-4 0 9999
TLE line 2: 2 37782 99.4561 36.9757 0189967 59.9029 302.0839 14.39078003728999
Live tracking on map
Real-time ground track for satellite CZ-4B R/B.
In-orbit conjunctions
A list of the most updated potential collisions computed for object CZ-4B R/B.
Associated space launch
CZ-4B R/B was lifted into orbit during the mission ‘Long March 4B | Hai Yang 2A’, on board a Long March 4B space rocket.
The launch took place on Aug. 15, 2011, 10:57 p.m. from Launch Complex 7.
For more information about the launch, click the button.

Long March 4B | Hai Yang 2A
Agency: N/A
Status: Launch Successful
Launch date: Aug. 15, 2011, 10:57 p.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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