YUNHAI 2-1B, 43910
Orbit data source: Space-Track
YUNHAI 2-1B, 43910 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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43910 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: 4 hours ago
TLE from 4 hours ago
0 YUNHAI 2-1B
1 43910U 18112B 25310.31581935 .00000571 00000-0 28835-3 0 9998
2 43910 50.0132 333.8035 0004753 164.0721 196.0345 14.28880602358378Epoch: 2025-11-06T07:34Z
TLE epoch observation values (Epoch: 2025-11-06T07:34:46.791Z)
Latitude
0°
Longitude
174.33265°
Altitude
799.284 km
Speed
7.453 km/s
True Right ascension
22h 15m 12s
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
07:39:22
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
799.623 km
Perigee altitude
792.803 km
Semi-major axis
7,174.35 km
Eccentricity
0.00048
Inclination
50.0132°
RAAN
333.8035°
Arg. of periapsis
164.0721°
True anomaly
196.01946°
Mean anomaly
196.0345°
Eccentric anomaly
196.02698°
Mean motion
3.57165 °/min
Orbital period
100.79 mins
BSTAR
0.00028835
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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 2-1B 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 03:53:05.145Z | 199.467° SSW | 2025-11-07 03:57:05.145Z | 129.387° SE | 34.039° | 2025-11-07 04:01:05.145Z | 70.492° E |
| 9 mins | 2025-11-07 05:38:05.145Z | 261.526° W | 2025-11-07 05:42:05.145Z | 327.381° NNW | 38.299° | 2025-11-07 05:47:05.145Z | 49.28° ENE |
| 8 mins | 2025-11-07 07:25:05.145Z | 304.02° NW | 2025-11-07 07:29:05.145Z | 4.693° NNE | 25.48° | 2025-11-07 07:33:05.145Z | 53.527° ENE |
| 8 mins | 2025-11-07 09:12:05.145Z | 323.041° NNW | 2025-11-07 09:15:05.145Z | 14.993° NNE | 30.779° | 2025-11-07 09:20:05.145Z | 83.601° E |
| 9 mins | 2025-11-07 10:57:05.145Z | 301.443° NW | 2025-11-07 11:01:05.145Z | 204.294° SW | 44.568° | 2025-11-07 11:06:05.145Z | 130.827° SE |
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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