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.
Focus sentinelFocus sentinel
Request partner network tasking
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
43910 intel report (Beta)
Focus sentinelFocus sentinel
Edit Public Description
Focus sentinelFocus sentinel
Edit Sat Name
Focus sentinelFocus sentinel
Create New Watchlist
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: 6 hours ago
TLE from 6 hours ago
0 YUNHAI 2-1B
1 43910U 18112B 26305.18627907 -.00000323 00000-0 -63114-4 0 9995
2 43910 50.0108 246.3110 0005097 344.7018 15.3742 14.29046372409832Epoch: 2026-11-01T04:28Z
TLE epoch observation values (Epoch: 2026-11-01T04:28:14.511Z)
Latitude
-0.00006°
Longitude
138.76922°
Altitude
791.927 km
Speed
7.461 km/s
True Right ascension
16h 25m 14s
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
05:46:02
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
799.315 km
Perigee altitude
792.002 km
Semi-major axis
7,173.795 km
Eccentricity
0.00051
Inclination
50.0108°
RAAN
246.311°
Arg. of periapsis
344.7018°
True anomaly
15.38969°
Mean anomaly
15.3742°
Eccentric anomaly
15.38195°
Mean motion
3.57207 °/min
Orbital period
100.78 mins
BSTAR
-0.000063114
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #112 in the year 2018 (2018-12-29 UTC)
Did you know?
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
Loading observer location...
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 | 2026-11-01 21:23:40.359Z | 158.995° S | 2026-11-01 21:26:40.359Z | 123.862° SE | 15.748° | 2026-11-01 21:28:40.359Z | 100.141° ESE |
| 9 mins | 2026-11-01 23:06:40.359Z | 226.781° WSW | 2026-11-01 23:10:40.359Z | 190.635° SSW | 71.072° | 2026-11-01 23:15:40.359Z | 58.714° ENE |
| 8 mins | 2026-11-02 00:53:40.359Z | 285.752° WNW | 2026-11-02 00:56:40.359Z | 335.125° NNW | 37.18° | 2026-11-02 01:01:40.359Z | 47.922° ENE |
| 7 mins | 2026-11-02 02:40:40.359Z | 319.575° NNW | 2026-11-02 02:43:40.359Z | 7.226° NNE | 28.642° | 2026-11-02 02:47:40.359Z | 59.754° ENE |
| 9 mins | 2026-11-02 04:25:40.359Z | 313.816° NW | 2026-11-02 04:29:40.359Z | 17.346° NNE | 49.941° | 2026-11-02 04:34:40.359Z | 98.967° ESE |
| 8 mins | 2026-11-02 06:11:40.359Z | 287.567° WNW | 2026-11-02 06:15:40.359Z | 211.277° SW | 45.073° | 2026-11-02 06:19:40.359Z | 154.925° SSE |
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 |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
|---|