YUNHAI 2-1A, 43909
Orbit data source: Space-Track
YUNHAI 2-1A, 43909 is a payload satellite owned by CASC (CN) in LEO that was launched on Sat, 29 Dec 2018 UTC via a CHANG ZHENG 2D/YZ-3 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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43909 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
DFH Shenzhen
Mission
Operational Defense Meteo Radio Occ.
Bus & Motor
YH-2, Unknown motor
Mass
~100 kg wet, ~100 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 0.5 m
Radar Cross Section
0.166 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 10 hours ago
TLE from 10 hours ago
0 YUNHAI 2-1A
1 43909U 18112A 25339.87948684 .00000292 00000-0 17824-3 0 9992
2 43909 50.0081 144.7223 0000257 142.3845 217.7089 14.28911373363448Epoch: 2025-12-05T21:06Z
TLE epoch observation values (Epoch: 2025-12-05T21:06:27.662Z)
Latitude
0.00002°
Longitude
113.19181°
Altitude
796.049 km
Speed
7.457 km/s
True Right ascension
09h 38m 53s
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
05:26:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
796.295 km
Perigee altitude
795.926 km
Semi-major axis
7,174.247 km
Eccentricity
0.00003
Inclination
50.0081°
RAAN
144.7223°
Arg. of periapsis
142.3845°
True anomaly
217.7071°
Mean anomaly
217.7089°
Eccentric anomaly
217.708°
Mean motion
3.57173 °/min
Orbital period
100.79 mins
BSTAR
0.00017824
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Other satellites on launch #112 in the year 2018 (2018-12-29 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.YUNHAI 2-1A 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-12-06 12:21:37.997Z | 155.902° SSE | 2025-12-06 12:23:37.997Z | 132.69° SE | 15.065° | 2025-12-06 12:26:37.997Z | 97.039° ESE |
| 9 mins | 2025-12-06 14:04:37.997Z | 226.301° WSW | 2025-12-06 14:08:37.997Z | 163.477° S | 44.117° | 2025-12-06 14:13:37.997Z | 58.616° ENE |
| 9 mins | 2025-12-06 15:50:37.997Z | 280.343° WNW | 2025-12-06 15:54:37.997Z | 342.769° N | 31.332° | 2025-12-06 15:59:37.997Z | 49.628° ENE |
| 8 mins | 2025-12-06 17:37:37.997Z | 312.756° NW | 2025-12-06 17:41:37.997Z | 13.076° NNE | 25.405° | 2025-12-06 17:45:37.997Z | 62.038° ENE |
| 9 mins | 2025-12-06 19:23:37.997Z | 314.949° NW | 2025-12-06 19:27:37.997Z | 28.854° NE | 37.66° | 2025-12-06 19:32:37.997Z | 100.395° ESE |
| 8 mins | 2025-12-06 21:09:37.997Z | 285.25° WNW | 2025-12-06 21:12:37.997Z | 233.868° WSW | 35.008° | 2025-12-06 21:17:37.997Z | 153.98° SSE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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