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 25309.94679925 .00000229 00000-0 15373-3 0 9993
2 43909 50.0097 271.7596 0000131 337.8389 22.2521 14.28885445359168Epoch: 2025-11-05T22:43Z
TLE epoch observation values (Epoch: 2025-11-05T22:43:23.455Z)
Latitude
0.00003°
Longitude
-114.50027°
Altitude
795.903 km
Speed
7.457 km/s
True Right ascension
18h 07m 02s
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
05:07:54
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
796.291 km
Perigee altitude
796.103 km
Semi-major axis
7,174.334 km
Eccentricity
0.00001
Inclination
50.0097°
RAAN
271.7596°
Arg. of periapsis
337.8389°
True anomaly
22.25267°
Mean anomaly
22.2521°
Eccentric anomaly
22.25238°
Mean motion
3.57167 °/min
Orbital period
100.79 mins
BSTAR
0.00015373
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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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2025-11-07 00:05:02.139Z | 212.111° SW | 2025-11-07 00:08:02.139Z | 162.519° S | 40.033° | 2025-11-07 00:13:02.139Z | 63.476° ENE |
| 9 mins | 2025-11-07 01:50:02.139Z | 272.107° WNW | 2025-11-07 01:54:02.139Z | 336.067° NNW | 34.263° | 2025-11-07 01:59:02.139Z | 48.811° ENE |
| 8 mins | 2025-11-07 03:37:02.139Z | 308.887° NW | 2025-11-07 03:41:02.139Z | 8.471° NNE | 25.167° | 2025-11-07 03:45:02.139Z | 57.553° ENE |
| 9 mins | 2025-11-07 05:23:02.139Z | 315.551° NNW | 2025-11-07 05:27:02.139Z | 20.303° NNE | 34.264° | 2025-11-07 05:32:02.139Z | 92.164° ESE |
| 9 mins | 2025-11-07 07:09:02.139Z | 293.577° NW | 2025-11-07 07:13:02.139Z | 203.037° SW | 40.347° | 2025-11-07 07:18:02.139Z | 142.061° 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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