YAOGAN 25C, 40340
Orbit data source: Space-Track
YAOGAN 25C, 40340 is a payload satellite owned by PLA GAD (CN) in LEO that was launched on Wed, 10 Dec 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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40340 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 25C
1 40340U 14080C 25338.76191620 -.00000032 00000-0 67991-4 0 9999
2 40340 63.3887 92.1105 0349681 8.6932 351.9940 13.45322131539592Epoch: 2025-12-04T18:17Z
TLE epoch observation values (Epoch: 2025-12-04T18:17:09.559Z)
Latitude
-0.00005°
Longitude
104.00693°
Altitude
832.864 km
Speed
7.564 km/s
True Right ascension
06h 08m 26s
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
06:16:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,349.437 km
Perigee altitude
827.259 km
Semi-major axis
7,466.485 km
Eccentricity
0.03497
Inclination
63.3887°
RAAN
92.1105°
Arg. of periapsis
8.6932°
True anomaly
351.41072°
Mean anomaly
351.994°
Eccentric anomaly
351.70495°
Mean motion
3.3641 °/min
Orbital period
107.01 mins
BSTAR
0.000067991
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Other satellites on launch #80 in the year 2014 (2014-12-10 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 25C 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 | 2025-12-05 08:40:28.737Z | 170.34° S | 2025-12-05 08:44:28.737Z | 117.54° SE | 27.727° | 2025-12-05 08:49:28.737Z | 53.964° ENE |
| 9 mins | 2025-12-05 10:31:28.737Z | 253.923° W | 2025-12-05 10:35:28.737Z | 325.801° NNW | 32.675° | 2025-12-05 10:40:28.737Z | 21.77° NNE |
| 9 mins | 2025-12-05 16:11:28.737Z | 357.713° N | 2025-12-05 16:15:28.737Z | 38.384° NE | 20.23° | 2025-12-05 16:20:28.737Z | 81.112° E |
| 13 mins | 2025-12-05 18:01:28.737Z | 330.692° NNW | 2025-12-05 18:06:28.737Z | 23.477° NE | 43.996° | 2025-12-05 18:14:28.737Z | 141.147° SSE |
| 10 mins | 2025-12-05 19:52:28.737Z | 292.607° NW | 2025-12-05 19:57:28.737Z | 245.361° WSW | 21.881° | 2025-12-05 20:02:28.737Z | 204.723° SW |
| 5 mins | 2025-12-06 07:53:28.737Z | 132.152° SE | 2025-12-06 07:55:28.737Z | 108.2° ESE | 15.654° | 2025-12-06 07:58:28.737Z | 74.769° E |
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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