Key statistics
Satellite SHIYAN 4 (SY-4) at a glance.
Uptime
5032
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: 100.631 minutes
Inclination: 98.7127 deg
SMA: 7166.64 km
Apoapsis: 804.158 km
Periapsis: 772.852 km
RAAN: 255.4893 deg
Eccentricy: 0.00218417
Argument of periapsis: 280.9963 deg
Mean anomaly: 138.6969 deg
Mean motion: 14.3096615 rev/day
Mean motion (dot): 0.00000239 rev/day2
B* drag term: 0.00010766357 1/REarth
Two-line elements (TLE)
Creation date: Aug. 30, 2025, 3:38 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: Aug. 29, 2025, 11:01 p.m. UTC
TLE line 0: 0 SHIYAN 4 (SY-4)
TLE line 1: 1 37931U 11068B 25241.95963315 .00000239 00000-0 10766-3 0 9991
TLE line 2: 2 37931 98.7127 255.4893 0021842 280.9963 138.6969 14.30966150717247
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 4 (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 4 (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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