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.
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40111 intel report (Beta)
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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: 7 hours ago
TLE from 7 hours ago
0 YAOGAN 20C
1 40111U 14047C 25288.97147439 .00000047 00000-0 15399-3 0 9993
2 40111 63.3801 289.2600 0368594 13.7679 347.3076 13.45413265549434Epoch: 2025-10-15T23:18Z
TLE epoch observation values (Epoch: 2025-10-15T23:18:55.387Z)
Latitude
-0.00008°
Longitude
-85.20871°
Altitude
822.925 km
Speed
7.574 km/s
True Right ascension
19h 17m 02s
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
01:00:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,363.209 km
Perigee altitude
812.814 km
Semi-major axis
7,466.149 km
Eccentricity
0.03686
Inclination
63.3801°
RAAN
289.26°
Arg. of periapsis
13.7679°
True anomaly
346.33602°
Mean anomaly
347.3076°
Eccentric anomaly
346.82629°
Mean motion
3.36433 °/min
Orbital period
107.01 mins
BSTAR
0.00015399
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Other satellites on launch #47 in the year 2014 (2014-08-09 UTC)
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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
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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 | 2025-10-16 08:42:56.761Z | 351.521° N | 2025-10-16 08:47:56.761Z | 40.755° NE | 19.841° | 2025-10-16 08:52:56.761Z | 82.419° E |
| 13 mins | 2025-10-16 10:33:56.761Z | 331.032° NNW | 2025-10-16 10:38:56.761Z | 40.76° NE | 44.199° | 2025-10-16 10:46:56.761Z | 141.313° SSE |
| 10 mins | 2025-10-16 12:24:56.761Z | 290.963° WNW | 2025-10-16 12:28:56.761Z | 253.466° W | 21.807° | 2025-10-16 12:34:56.761Z | 203.318° SW |
| 5 mins | 2025-10-17 00:25:56.761Z | 131.043° SE | 2025-10-17 00:27:56.761Z | 106.739° ESE | 15.177° | 2025-10-17 00:30:56.761Z | 73.587° E |
| 9 mins | 2025-10-17 02:13:56.761Z | 226.288° WSW | 2025-10-17 02:17:56.761Z | 336.784° NNW | 42.623° | 2025-10-17 02:22:56.761Z | 29.542° NE |
| 5 mins | 2025-10-17 04:06:56.761Z | 303.833° NW | 2025-10-17 04:08:56.761Z | 326.455° NNW | 15.314° | 2025-10-17 04:11:56.761Z | 358.953° N |
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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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