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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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: 8 hours ago
TLE from 8 hours ago
0 YAOGAN 20A
1 40109U 14047A 26306.23310203 -.00000052 00000-0 40621-4 0 9996
2 40109 63.3796 23.1720 0402087 15.4557 345.8336 13.45452000601017Epoch: 2026-11-02T05:35Z
TLE epoch observation values (Epoch: 2026-11-02T05:35:40.015Z)
Latitude
-0.00005°
Longitude
-102.25782°
Altitude
800.43 km
Speed
7.597 km/s
True Right ascension
01h 32m 41s
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
09:10:00
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,388.066 km
Perigee altitude
787.669 km
Semi-major axis
7,466.005 km
Eccentricity
0.04021
Inclination
63.3796°
RAAN
23.172°
Arg. of periapsis
15.4557°
True anomaly
344.64839°
Mean anomaly
345.8336°
Eccentric anomaly
345.24693°
Mean motion
3.36442 °/min
Orbital period
107 mins
BSTAR
0.000040621
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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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2026-11-02 15:01:08.676Z | 338.734° N | 2026-11-02 15:07:08.676Z | 48.534° ENE | 46.217° | 2026-11-02 15:14:08.676Z | 119.066° SE |
| 13 mins | 2026-11-02 16:52:08.676Z | 308.539° NW | 2026-11-02 16:58:08.676Z | 237.808° WSW | 43.22° | 2026-11-02 17:05:08.676Z | 177.65° S |
| 9 mins | 2026-11-03 06:42:08.676Z | 192.205° SSW | 2026-11-03 06:46:08.676Z | 107.177° ESE | 57.766° | 2026-11-03 06:51:08.676Z | 41.808° NE |
| 7 mins | 2026-11-03 08:34:08.676Z | 282.293° WNW | 2026-11-03 08:37:08.676Z | 326.385° NNW | 24.57° | 2026-11-03 08:41:08.676Z | 11.819° NNE |
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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