Key statistics
Satellite YAOGAN 4 at a glance.
Uptime
6000
Days in orbit
Revolutions
≈ 14.8
Per day
Orbit
SSO
Sun Synchronous Orbit
Inclination
97.9
Latest
Satellite identification and parameters
Extended collection of information and parameters for YAOGAN 4.
Object identification
Identified? True
Debris? False
Object name: YAOGAN 4
International designator: 2008-061A
Object number (NORAD): 33446
Object ID (CCSDS): 33446
Country: PEOPLES REPUBLIC OF CHINA (PRC)
Current information (Y/N): Y
RCS size: LARGE
Orbital parameters
Period: 97.169 minutes
Inclination: 97.9033 deg
SMA: 7001.279 km
Apoapsis: 632.734 km
Periapsis: 613.553 km
RAAN: 58.5536 deg
Eccentricy: 0.0013698
Argument of periapsis: 322.4918 deg
Mean anomaly: 37.5338 deg
Mean motion: 14.81960758 rev/day
Mean motion (dot): 0.00001778 rev/day2
B* drag term: 0.00023071 1/REarth
Two-line elements (TLE)
Creation date: May 6, 2025, 3:54 a.m.
Reference frame: TEME
Reference center: EARTH
Epoch: May 5, 2025, 8:38 p.m. UTC
TLE line 0: 0 YAOGAN 4
TLE line 1: 1 33446U 08061A 25125.85980876 .00001778 00000-0 23071-3 0 9990
TLE line 2: 2 33446 97.9033 58.5536 0013698 322.4918 37.5338 14.81960758885314
Live tracking on map
Real-time ground track for satellite YAOGAN 4.
In-orbit conjunctions
There are no conjunctions computed for YAOGAN 4, at the moment. Check back to stay up to date, as we update our databases every day.
Go to all conjunctionsAssociated space launch
Chinese Earth observation satellite, likely also used for military reconnaissance
YAOGAN 4 was lifted into orbit during the mission ‘Long March 2D | Yaogan Weixing 4’, on board a Long March 2D space rocket.
The launch took place on Dec. 1, 2008, 4:42 a.m. from Launch Area 4 (SLS-2 / 603).
For more information about the launch, click the button.
Long March 2D | Yaogan Weixing 4
Agency: N/A
Status: Launch Successful
Launch date: Dec. 1, 2008, 4:42 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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