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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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: 6 hours ago
TLE from 6 hours ago
0 YAOGAN 25C
1 40340U 14080C 26295.90977637 -.00000027 00000-0 69552-4 0 9997
2 40340 63.3881 342.2022 0378036 10.2633 350.5840 13.45357693582937Epoch: 2026-10-22T21:50Z
TLE epoch observation values (Epoch: 2026-10-22T21:50:04.678Z)
Latitude
-0.00004°
Longitude
-16.65522°
Altitude
812.935 km
Speed
7.585 km/s
True Right ascension
22h 48m 48s
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
23:07:01
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,370.471 km
Perigee altitude
805.961 km
Semi-major axis
7,466.353 km
Eccentricity
0.0378
Inclination
63.3881°
RAAN
342.2022°
Arg. of periapsis
10.2633°
True anomaly
349.84072°
Mean anomaly
350.584°
Eccentric anomaly
350.21592°
Mean motion
3.36419 °/min
Orbital period
107.01 mins
BSTAR
0.000069552
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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. |
|---|---|---|---|---|---|---|---|
| 10 mins | 2026-10-23 05:06:07.486Z | 206.993° SW | 2026-10-23 05:10:07.486Z | 177.041° S | 72.837° | 2026-10-23 05:16:07.486Z | 36.215° NE |
| 7 mins | 2026-10-23 06:59:07.486Z | 289.599° WNW | 2026-10-23 07:02:07.486Z | 327.916° NNW | 20.839° | 2026-10-23 07:06:07.486Z | 10.197° NNE |
| 4 mins | 2026-10-23 10:48:07.486Z | 9.94° NNE | 2026-10-23 10:49:07.486Z | 18.75° NNE | 12.232° | 2026-10-23 10:52:07.486Z | 43.744° NE |
| 12 mins | 2026-10-23 12:37:07.486Z | 346.025° N | 2026-10-23 12:42:07.486Z | 43.95° NE | 37.604° | 2026-10-23 12:49:07.486Z | 110.148° ESE |
| 13 mins | 2026-10-23 14:27:07.486Z | 314.946° NW | 2026-10-23 14:33:07.486Z | 242.009° WSW | 56.312° | 2026-10-23 14:40:07.486Z | 169.107° S |
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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