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: 20 hours ago
TLE from 20 hours ago
0 YUNHAI 2-1A
1 43909U 18112A 25287.91655009 .00000172 00000-0 13125-3 0 9992
2 43909 50.0116 5.2538 0000116 180.7452 179.3463 14.28868146356014Epoch: 2025-10-14T21:59Z
TLE epoch observation values (Epoch: 2025-10-14T21:59:49.927Z)
Latitude
-0.00004°
Longitude
11.59763°
Altitude
796.132 km
Speed
7.457 km/s
True Right ascension
00h 21m 00s
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
12:46:27
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
796.338 km
Perigee altitude
796.171 km
Semi-major axis
7,174.392 km
Eccentricity
0.00001
Inclination
50.0116°
RAAN
5.2538°
Arg. of periapsis
180.7452°
True anomaly
179.34632°
Mean anomaly
179.3463°
Eccentric anomaly
179.34631°
Mean motion
3.57162 °/min
Orbital period
100.79 mins
BSTAR
0.00013125
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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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2025-10-16 07:44:50.139Z | 218.324° SW | 2025-10-16 07:48:50.139Z | 137.123° SSE | 42.228° | 2025-10-16 07:53:50.139Z | 60.841° ENE |
| 8 mins | 2025-10-16 09:30:50.139Z | 277.737° WNW | 2025-10-16 09:34:50.139Z | 349.924° N | 32.897° | 2025-10-16 09:38:50.139Z | 46.085° ENE |
| 7 mins | 2025-10-16 11:17:50.139Z | 313.886° NW | 2025-10-16 11:20:50.139Z | 358.456° N | 25.408° | 2025-10-16 11:24:50.139Z | 54.856° ENE |
| 8 mins | 2025-10-16 13:03:50.139Z | 317.89° NNW | 2025-10-16 13:07:50.139Z | 35.738° NE | 35.063° | 2025-10-16 13:11:50.139Z | 92.402° ESE |
| 9 mins | 2025-10-16 14:48:50.139Z | 293.497° NW | 2025-10-16 14:52:50.139Z | 228.142° WSW | 38.865° | 2025-10-16 14:57:50.139Z | 146.776° 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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