YAOGAN 20C, 40111
Orbit data source: Space-Track
YAOGAN 20C, 40111 is a payload satellite owned by PLA GAD (CN) in LEO that was launched on Sat, 09 Aug 2014 UTC via a CHANG ZHENG 4C launch vehicle from the Jiuquan Satellite Launch Center, China (JSC). Payload-class satellites include a variety of spacecraft equipped with specific instruments for various scientific and technological missions. These include communications satellites like Starlink; space stations such as the ISS; scientific satellites like the Hubble; Earth observation satellites from companies like Planet Labs, Umbra, and HawkEye 360; GPS; miniature CubeSats for education and research; and military/defense satellites.
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
40111 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
CAST
Mission
Operational Defense Sigint
Bus & Motor
Unknown
Mass
~500 kg wet, ~500 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 0.5 m
Radar Cross Section
0.446 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 6 hours ago
TLE from 6 hours ago
0 YAOGAN 20C
1 40111U 14047C 25312.23561559 .00000060 00000-0 16822-3 0 9990
2 40111 63.3799 229.2999 0370846 13.8859 347.2037 13.45419697552568Epoch: 2025-11-08T05:39Z
TLE epoch observation values (Epoch: 2025-11-08T05:39:17.186Z)
Latitude
-0.00009°
Longitude
96.81011°
Altitude
821.387 km
Speed
7.576 km/s
True Right ascension
15h 17m 11s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
08:08:42
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,364.866 km
Perigee altitude
811.109 km
Semi-major axis
7,466.125 km
Eccentricity
0.03708
Inclination
63.3799°
RAAN
229.2999°
Arg. of periapsis
13.8859°
True anomaly
346.21806°
Mean anomaly
347.2037°
Eccentric anomaly
346.71545°
Mean motion
3.36434 °/min
Orbital period
107 mins
BSTAR
0.00016822
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #47 in the year 2014 (2014-08-09 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.YAOGAN 20C Visibility forecast
Loading observer location...
Span | Click to sort rows by Start time (UTC) header in descending order | Start Az. | Max El. time (UTC) | Max El. Az. | Max El. | End time (UTC) | End Az. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2025-11-08 20:02:28.559Z | 192.467° SSW | 2025-11-08 20:07:28.559Z | 113.415° SE | 38.784° | 2025-11-08 20:12:28.559Z | 43.815° NE |
| 7 mins | 2025-11-08 21:55:28.559Z | 279.267° WNW | 2025-11-08 21:58:28.559Z | 324.722° NNW | 24.22° | 2025-11-08 22:02:28.559Z | 11.809° NNE |
| 10 mins | 2025-11-09 03:34:28.559Z | 355.68° N | 2025-11-09 03:38:28.559Z | 41.969° NE | 25.882° | 2025-11-09 03:44:28.559Z | 97.053° ESE |
| 14 mins | 2025-11-09 05:23:28.559Z | 321.614° NNW | 2025-11-09 05:29:28.559Z | 249.457° W | 43.959° | 2025-11-09 05:37:28.559Z | 156.287° SSE |
| 5 mins | 2025-11-09 07:17:28.559Z | 269.912° W | 2025-11-09 07:19:28.559Z | 253.29° W | 13.918° | 2025-11-09 07:22:28.559Z | 230.013° WSW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in ascending order |
|---|