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: 7 hours ago
TLE from 7 hours ago
0 YAOGAN 25C
1 40340U 14080C 26062.51328567 -.00000029 00000-0 70757-4 0 9999
2 40340 63.3850 223.5187 0357595 9.1066 351.6219 13.45339007551533Epoch: 2026-03-03T12:19Z
TLE epoch observation values (Epoch: 2026-03-03T12:19:07.881Z)
Latitude
-0.00012°
Longitude
-122.55546°
Altitude
827.225 km
Speed
7.57 km/s
True Right ascension
14h 54m 04s
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
22:57:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,355.281 km
Perigee altitude
821.29 km
Semi-major axis
7,466.423 km
Eccentricity
0.03576
Inclination
63.385°
RAAN
223.5187°
Arg. of periapsis
9.1066°
True anomaly
350.99728°
Mean anomaly
351.6219°
Eccentric anomaly
351.31243°
Mean motion
3.36414 °/min
Orbital period
107.01 mins
BSTAR
0.000070757
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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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2026-03-03 19:57:10.137Z | 343.555° N | 2026-03-03 20:03:10.137Z | 48.861° ENE | 29.175° | 2026-03-03 20:09:10.137Z | 103.997° ESE |
| 13 mins | 2026-03-03 21:48:10.137Z | 316.785° NNW | 2026-03-03 21:54:10.137Z | 229.639° WSW | 41.609° | 2026-03-03 22:01:10.137Z | 163.875° S |
| 9 mins | 2026-03-04 11:38:10.137Z | 171.904° S | 2026-03-04 11:42:10.137Z | 109.452° ESE | 30.298° | 2026-03-04 11:47:10.137Z | 50.141° ENE |
| 8 mins | 2026-03-04 13:29:10.137Z | 260.992° W | 2026-03-04 13:32:10.137Z | 310.056° NW | 30.836° | 2026-03-04 13:37:10.137Z | 17.496° 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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