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: 7 hours ago
TLE from 7 hours ago
0 YUNHAI 2-1A
1 43909U 18112A 25258.26266413 .00000173 00000-0 13180-3 0 9997
2 43909 50.0090 131.0984 0000276 12.5149 347.5773 14.28841677351771Epoch: 2025-09-15T06:18Z
TLE epoch observation values (Epoch: 2025-09-15T06:18:14.18Z)
Latitude
-0.00004°
Longitude
42.06945°
Altitude
795.944 km
Speed
7.457 km/s
True Right ascension
08h 44m 23s
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
05:36:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
796.542 km
Perigee altitude
796.146 km
Semi-major axis
7,174.481 km
Eccentricity
0.00003
Inclination
50.009°
RAAN
131.0984°
Arg. of periapsis
12.5149°
True anomaly
347.57662°
Mean anomaly
347.5773°
Eccentric anomaly
347.57696°
Mean motion
3.57156 °/min
Orbital period
100.8 mins
BSTAR
0.0001318
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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 | 2025-09-15 18:13:01.440Z | 213.797° SW | 2025-09-15 18:18:01.440Z | 116.981° SE | 38.989° | 2025-09-15 18:22:01.440Z | 64.566° ENE |
| 9 mins | 2025-09-15 19:59:01.440Z | 270.407° WNW | 2025-09-15 20:03:01.440Z | 334.719° NNW | 34.905° | 2025-09-15 20:08:01.440Z | 48.784° ENE |
| 8 mins | 2025-09-15 21:46:01.440Z | 308.073° NW | 2025-09-15 21:50:01.440Z | 7.668° NNE | 25.181° | 2025-09-15 21:54:01.440Z | 56.771° ENE |
| 9 mins | 2025-09-15 23:32:01.440Z | 315.537° NNW | 2025-09-15 23:36:01.440Z | 18.978° NNE | 33.638° | 2025-09-15 23:41:01.440Z | 90.616° ESE |
| 9 mins | 2025-09-16 01:18:01.440Z | 295.063° NW | 2025-09-16 01:22:01.440Z | 203.717° SW | 41.349° | 2025-09-16 01:27:01.440Z | 140.283° 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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