Key statistics
Satellite SHIYAN 4 (SY-4) at a glance.
Uptime
5138
Days in orbit
Revolutions
≈ 14.3
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
98.7
Latest
Satellite identification and parameters
Extended collection of information and parameters for SHIYAN 4 (SY-4).
Object identification
Identified? True
Debris? False
Object name: SHIYAN 4 (SY-4)
International designator: 2011-068B
Object number (NORAD): 37931
Object ID (CCSDS): 37931
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 100.626 minutes
Inclination: 98.7067 deg
SMA: 7166.393 km
Apoapsis: 804.334 km
Periapsis: 772.182 km
RAAN: 1.4482 deg
Eccentricy: 0.00224326
Argument of periapsis: 332.6545 deg
Mean anomaly: 143.1601 deg
Mean motion: 14.31040287 rev/day
Mean motion (dot): 0.00000301 rev/day2
B* drag term: 0.00013113963 1/REarth
Two-line elements (TLE)
Creation date: Dec. 14, 2025, 3:07 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Dec. 13, 2025, 4:34 p.m. UTC
TLE line 0: 0 SHIYAN 4 (SY-4)
TLE line 1: 1 37931U 11068B 25347.69093630 .00000301 00000-0 13114-3 0 9993
TLE line 2: 2 37931 98.7067 1.4482 0022433 332.6545 143.1601 14.31040287732360
Live tracking on map
Real-time ground track for satellite SHIYAN 4 (SY-4).
In-orbit conjunctions
There are no conjunctions computed for SHIYAN 4 (SY-4), at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
SHIYAN 4 (SY-4) was lifted into orbit during the mission ‘Long March 2D | Shiyan Weixing 4 & Chuang Xin 1C’, on board a Long March 2D space rocket.
The launch took place on Nov. 20, 2011, 12:15 a.m. from Launch Area 94 (SLS-2 / 603).
For more information about the launch, click the button.
Long March 2D | Shiyan Weixing 4 & Chuang Xin 1C
Agency: N/A
Status: Launch Successful
Launch date: Nov. 20, 2011, 12:15 a.m. UTC
Rocket: Long March 2D
Launch pad: Launch Area 94 (SLS-2 / 603)
Location: Jiuquan Satellite Launch Center, People's Republic of China
...
Latest news about this satellite
There are no fresh news available about this satellite. Check back as we update our databases every day.
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