Key statistics
Satellite CZ-4B R/B at a glance.
Uptime
1654
Days in orbit
Revolutions
≈ 14.1
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: 2021-028B
Object number (NORAD): 48158
Object ID (CCSDS): 48158
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 102.464 minutes
Inclination: 99.4613 deg
SMA: 7253.378 km
Apoapsis: 991.569 km
Periapsis: 758.918 km
RAAN: 39.9871 deg
Eccentricy: 0.01603745
Argument of periapsis: 165.7469 deg
Mean anomaly: 194.8301 deg
Mean motion: 14.05375155 rev/day
Mean motion (dot): -0.00000057 rev/day2
B* drag term: -0.000005152826 1/REarth
Two-line elements (TLE)
Creation date: Oct. 18, 2025, 2:17 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Oct. 17, 2025, 10:13 p.m. UTC
TLE line 0: 0 CZ-4B R/B
TLE line 1: 1 48158U 21028B 25290.92616410 -.00000057 00000-0 -51528-5 0 9996
TLE line 2: 2 48158 99.4613 39.9871 0160375 165.7469 194.8301 14.05375155232130
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 | Shiyan-6-03’, on board a Long March 4B space rocket.
The launch took place on April 8, 2021, 11:01 p.m. from Launch Complex 9.
For more information about the launch, click the button.
Long March 4B | Shiyan-6-03
Agency: N/A
Status: Launch Successful
Launch date: April 8, 2021, 11:01 p.m. UTC
Rocket: Long March 4B
Launch pad: Launch Complex 9
Location: Taiyuan Satellite Launch Center, People's Republic of China
...
Latest news about this satellite
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China launched an experimental satellite from the Taiyuan Satellite Launch Center on Friday morning using the Long March-4B – Chang Zheng-4B – (Y49) rocket. The launch took place at 23:01 UTC (Thursday) from Launch Complex LC9.
China launches experimental Shiyan satellite
China launched the third in a series of experimental Shiyan 6 satellites April 8 aboard a Long March 4B rocket, beginning a mission to test new space technologies, including a new super-black coating to absorb stray light and improve the sensitivity of on...
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