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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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: 5 hours ago
TLE from 5 hours ago
0 YUNHAI 2-1A
1 43909U 18112A 26305.16428005 -.00000060 00000-0 40067-4 0 9998
2 43909 50.0082 182.7309 0000288 33.4812 326.6121 14.29067280410679Epoch: 2026-11-01T03:56Z
TLE epoch observation values (Epoch: 2026-11-01T03:56:33.796Z)
Latitude
-0.00005°
Longitude
83.13046°
Altitude
795.209 km
Speed
7.457 km/s
True Right ascension
12h 10m 55s
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
04:30:53
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
795.795 km
Perigee altitude
795.382 km
Semi-major axis
7,173.726 km
Eccentricity
0.00003
Inclination
50.0082°
RAAN
182.7309°
Arg. of periapsis
33.4812°
True anomaly
326.61028°
Mean anomaly
326.6121°
Eccentric anomaly
326.61119°
Mean motion
3.57212 °/min
Orbital period
100.78 mins
BSTAR
0.000040067
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-11-01 17:30:43.193Z | 171.543° S | 2026-11-01 17:33:43.193Z | 133.813° SE | 21.571° | 2026-11-01 17:37:43.193Z | 83.913° E |
| 9 mins | 2026-11-01 19:14:43.193Z | 237.571° WSW | 2026-11-01 19:18:43.193Z | 280.076° WNW | 82.444° | 2026-11-01 19:23:43.193Z | 54.747° ENE |
| 8 mins | 2026-11-01 21:01:43.193Z | 293.803° NW | 2026-11-01 21:04:43.193Z | 342.249° N | 33.534° | 2026-11-01 21:09:43.193Z | 49.636° ENE |
| 8 mins | 2026-11-01 22:47:43.193Z | 314.061° NW | 2026-11-01 22:51:43.193Z | 12.732° NNE | 29.701° | 2026-11-01 22:55:43.193Z | 65.171° ENE |
| 9 mins | 2026-11-02 00:33:43.193Z | 312.329° NW | 2026-11-02 00:37:43.193Z | 28.764° NE | 60.478° | 2026-11-02 00:42:43.193Z | 108.073° ESE |
| 8 mins | 2026-11-02 02:19:43.193Z | 278.845° WNW | 2026-11-02 02:22:43.193Z | 231.235° WSW | 34.397° | 2026-11-02 02:27:43.193Z | 162.98° S |
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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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