Key statistics
Satellite CZ-4B R/B at a glance.
Uptime
31
Days in orbit
Revolutions
≈ 15.7
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
97.5
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: 2025-289B
Object number (NORAD): 66989
Object ID (CCSDS): 66989
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
Orbital parameters
Period: 91.446 minutes
Inclination: 97.5188 deg
SMA: 6723.629 km
Apoapsis: 431.72 km
Periapsis: 259.267 km
RAAN: 80.5194 deg
Eccentricy: 0.01282437
Argument of periapsis: 262.6251 deg
Mean anomaly: 96.0424 deg
Mean motion: 15.74697669 rev/day
Mean motion (dot): 0.00135204 rev/day2
B* drag term: 0.00054471391 1/REarth
Two-line elements (TLE)
Creation date: Jan. 8, 2026, 11:20 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Jan. 8, 2026, 3:35 a.m. UTC
TLE line 0: 0 CZ-4B R/B
TLE line 1: 1 66989U 25289B 26008.14968184 .00135204 78521-5 54471-3 0 9998
TLE line 2: 2 66989 97.5188 80.5194 0128244 262.6251 96.0424 15.74697669 4717
Live tracking on map
Real-time ground track for satellite CZ-4B R/B.
In-orbit conjunctions
There are no conjunctions computed for CZ-4B R/B, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
The Yaogan 47 is a Chinese military “remote sensing” satellite of unknown purposes.
CZ-4B R/B was lifted into orbit during the mission ‘Long March 4B | Yaogan 47’, on board a Long March 4B space rocket.
The launch took place on Dec. 9, 2025, 3:41 a.m. from Launch Area 94 (SLS-2 / 603).
For more information about the launch, click the button.
Long March 4B | Yaogan 47
Agency: N/A
Status: Launch Successful
Launch date: Dec. 9, 2025, 3:41 a.m. UTC
Rocket: Long March 4B
Launch pad: Launch Area 94 (SLS-2 / 603)
Location: Jiuquan Satellite Launch Center, People's Republic of China
...
Latest news about this satellite
Triple Long March launches mark record day for Chinese space program
Tokyo, Japan (SPX) Dec 11, 2025 China Aerospace Science and Technology Corp (CASC) has achieved three orbital launches with Long March rockets in a single day, setting a new mark for the country's spaceflight cadence. The first mission lifted off...
China launches 4 times in 4 days, boosting megaconstellation and surveillance assets
China launched four missions in four days, accelerating its record-setting launch cadence while expanding its Guowang LEO megaconstellation and deploying new Yaogan reconnaissance assets. The post China launches 4 times in 4 days, boosting megaconstellat...
Launch Roundup: China, Russia, Rocket Lab, ULA join SpaceX in flying this week
The upcoming launch week, starting on Monday, Dec. 8, is a very busy one as… The post Launch Roundup: China, Russia, Rocket Lab, ULA join SpaceX in flying this week appeared first on NASASpaceFlight.com.
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