Key statistics
Satellite SHIYAN 4 (SY-4) at a glance.
Uptime
4978
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: 100.633 minutes
Inclination: 98.7113 deg
SMA: 7166.718 km
Apoapsis: 805.893 km
Periapsis: 771.272 km
RAAN: 201.3036 deg
Eccentricy: 0.0024154
Argument of periapsis: 79.5418 deg
Mean anomaly: 346.2295 deg
Mean motion: 14.30942951 rev/day
Mean motion (dot): 0.00000129 rev/day2
B* drag term: 0.000065988 1/REarth
Two-line elements (TLE)
Creation date: July 6, 2025, 10:56 p.m.
Reference frame: TEME
Reference center: EARTH
Epoch: July 6, 2025, 9:50 p.m. UTC
TLE line 0: 0 SHIYAN 4 (SY-4)
TLE line 1: 1 37931U 11068B 25187.91014759 .00000129 00000-0 65988-4 0 9990
TLE line 2: 2 37931 98.7113 201.3036 0024154 79.5418 346.2295 14.30942951711388
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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