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: 14 hours ago
TLE from 14 hours ago
0 YAOGAN 20C
1 40111U 14047C 25341.89166951 -.00000034 00000-0 62852-4 0 9998
2 40111 63.3773 152.8644 0373563 14.0609 347.0482 13.45425724556556Epoch: 2025-12-07T21:24Z
TLE epoch observation values (Epoch: 2025-12-07T21:24:00.245Z)
Latitude
0.00001°
Longitude
114.96484°
Altitude
819.576 km
Speed
7.578 km/s
True Right ascension
10h 11m 27s
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
09:16:45
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,366.872 km
Perigee altitude
809.06 km
Semi-major axis
7,466.103 km
Eccentricity
0.03736
Inclination
63.3773°
RAAN
152.8644°
Arg. of periapsis
14.0609°
True anomaly
346.04316°
Mean anomaly
347.0482°
Eccentric anomaly
346.55037°
Mean motion
3.36436 °/min
Orbital period
107 mins
BSTAR
0.000062852
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-12-08 13:36:22.862Z | 218.007° SW | 2025-12-08 13:40:22.862Z | 347.939° N | 44.402° | 2025-12-08 13:45:22.862Z | 32.091° NE |
| 6 mins | 2025-12-08 15:29:22.862Z | 300.706° NW | 2025-12-08 15:31:22.862Z | 324.64° NNW | 16.753° | 2025-12-08 15:35:22.862Z | 7.113° NNE |
| 5 mins | 2025-12-08 19:17:22.862Z | 7.974° NNE | 2025-12-08 19:19:22.862Z | 26.327° NE | 13.21° | 2025-12-08 19:22:22.862Z | 51.641° ENE |
| 12 mins | 2025-12-08 21:06:22.862Z | 342.256° N | 2025-12-08 21:11:22.862Z | 41.131° NE | 34.691° | 2025-12-08 21:18:22.862Z | 116.216° SE |
| 12 mins | 2025-12-08 22:57:22.862Z | 306.816° NW | 2025-12-08 23:02:22.862Z | 244.398° WSW | 35.596° | 2025-12-08 23:09:22.862Z | 176.603° S |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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