Key statistics
Satellite CZ-4B R/B at a glance.
Uptime
2187
Days in orbit
Revolutions
≈ 15.1
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.7
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: 2019-059D
Object number (NORAD): 44531
Object ID (CCSDS): 44531
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 95.363 minutes
Inclination: 98.7161 deg
SMA: 6914.276 km
Apoapsis: 637.495 km
Periapsis: 434.786 km
RAAN: 237.0435 deg
Eccentricy: 0.0146587
Argument of periapsis: 103.6063 deg
Mean anomaly: 258.1537 deg
Mean motion: 15.10020076 rev/day
Mean motion (dot): 0.00009545 rev/day2
B* drag term: 0.00045860197 1/REarth
Two-line elements (TLE)
Creation date: Sept. 7, 2025, 3:09 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Sept. 6, 2025, 10:54 p.m. UTC
TLE line 0: 0 CZ-4B R/B
TLE line 1: 1 44531U 19059D 25249.95434207 .00009545 00000-0 45860-3 0 9996
TLE line 2: 2 44531 98.7161 237.0435 0146587 103.6063 258.1537 15.10020076326920
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 | Ziyuan-2D, Tianyi MV-1, BNU-1’, on board a Long March 4B space rocket.
The launch took place on Sept. 12, 2019, 3:26 a.m. from Launch Complex 9.
For more information about the launch, click the button.
Long March 4B | Ziyuan-2D, Tianyi MV-1, BNU-1
Agency: N/A
Status: Launch Successful
Launch date: Sept. 12, 2019, 3:26 a.m. UTC
Rocket: Long March 4B
Launch pad: Launch Complex 9
Location: Taiyuan Satellite Launch Center, People's Republic of China
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