YAOGAN 20A, 40109
Orbit data source: Space-Track
YAOGAN 20A, 40109 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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40109 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
CAST
Mission
Operational Defense Sigint
Bus & Motor
JB-8, Unknown motor
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 20A
1 40109U 14047A 25341.22928573 -.00000017 00000-0 81914-4 0 9999
2 40109 63.3782 153.9929 0373568 13.6594 347.4213 13.45416680556618Epoch: 2025-12-07T05:30Z
TLE epoch observation values (Epoch: 2025-12-07T05:30:10.287Z)
Latitude
0.00003°
Longitude
-4.79561°
Altitude
819.173 km
Speed
7.578 km/s
True Right ascension
10h 15m 58s
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
18:05:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,366.91 km
Perigee altitude
809.088 km
Semi-major axis
7,466.136 km
Eccentricity
0.03736
Inclination
63.3782°
RAAN
153.9929°
Arg. of periapsis
13.6594°
True anomaly
346.44465°
Mean anomaly
347.4213°
Eccentric anomaly
346.93754°
Mean motion
3.36434 °/min
Orbital period
107 mins
BSTAR
0.000081914
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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 20A 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 | 2025-12-07 20:15:36.294Z | 353.123° N | 2025-12-07 20:19:36.294Z | 32.374° NE | 20.375° | 2025-12-07 20:24:36.294Z | 78.769° E |
| 14 mins | 2025-12-07 22:05:36.294Z | 329.179° NNW | 2025-12-07 22:11:36.294Z | 63.473° ENE | 44.501° | 2025-12-07 22:19:36.294Z | 142.825° SSE |
| 9 mins | 2025-12-07 23:57:36.294Z | 288.523° WNW | 2025-12-08 00:01:36.294Z | 250.739° W | 21.122° | 2025-12-08 00:06:36.294Z | 208.319° SW |
| 5 mins | 2025-12-08 11:58:36.294Z | 128.739° SE | 2025-12-08 12:00:36.294Z | 103.309° ESE | 15.835° | 2025-12-08 12:03:36.294Z | 70.73° E |
| 10 mins | 2025-12-08 13:45:36.294Z | 226.142° WSW | 2025-12-08 13:49:36.294Z | 284.914° WNW | 42.249° | 2025-12-08 13:55:36.294Z | 29.284° NE |
| 5 mins | 2025-12-08 15:39:36.294Z | 306.887° NW | 2025-12-08 15:41:36.294Z | 329.502° NNW | 14.933° | 2025-12-08 15:44:36.294Z | 0.99° NNE |
| 5 mins | 2025-12-08 19:27:36.294Z | 10.866° NNE | 2025-12-08 19:29:36.294Z | 29.962° NE | 14.755° | 2025-12-08 19:32:36.294Z | 56.001° ENE |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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