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: 10 hours ago
TLE from 10 hours ago
0 YAOGAN 20C
1 40111U 14047C 25258.34888830 -.00000056 00000-0 39479-4 0 9995
2 40111 63.3840 8.1778 0365884 13.6361 347.4234 13.45409019545319Epoch: 2025-09-15T08:22Z
TLE epoch observation values (Epoch: 2025-09-15T08:22:23.949Z)
Latitude
0.00004°
Longitude
-111.97679°
Altitude
824.777 km
Speed
7.573 km/s
True Right ascension
00h 32m 42s
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
10:59:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,361.202 km
Perigee altitude
814.852 km
Semi-major axis
7,466.164 km
Eccentricity
0.03659
Inclination
63.384°
RAAN
8.1778°
Arg. of periapsis
13.6361°
True anomaly
346.46793°
Mean anomaly
347.4234°
Eccentric anomaly
346.95004°
Mean motion
3.36432 °/min
Orbital period
107.01 mins
BSTAR
0.000039479
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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 | 2025-09-15 19:40:58.042Z | 293.952° NW | 2025-09-15 19:45:58.042Z | 246.904° WSW | 22.108° | 2025-09-15 19:50:58.042Z | 205.038° SW |
| 4 mins | 2025-09-16 07:42:58.042Z | 124.06° SE | 2025-09-16 07:43:58.042Z | 111.85° ESE | 14.831° | 2025-09-16 07:46:58.042Z | 77.483° E |
| 9 mins | 2025-09-16 09:29:58.042Z | 224.311° SW | 2025-09-16 09:33:58.042Z | 307.45° NW | 43.419° | 2025-09-16 09:38:58.042Z | 29.15° NE |
| 5 mins | 2025-09-16 11:23:58.042Z | 310.041° NW | 2025-09-16 11:25:58.042Z | 333.507° NNW | 15.515° | 2025-09-16 11:28:58.042Z | 4.109° NNE |
| 6 mins | 2025-09-16 15:10:58.042Z | 5.021° NNE | 2025-09-16 15:12:58.042Z | 23.551° NE | 14.2° | 2025-09-16 15:16:58.042Z | 57.844° ENE |
| 13 mins | 2025-09-16 16:59:58.042Z | 339.163° N | 2025-09-16 17:05:58.042Z | 57.035° ENE | 36.849° | 2025-09-16 17:12:58.042Z | 122.205° SE |
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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