YIJIAN, 41899
Orbit data source: Space-Track
YIJIAN, 41899 is a payload satellite owned by SECM (CN) in SSO that was launched on Wed, 21 Dec 2016 UTC via a CHANG ZHENG 2D 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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41899 intel report (Beta)
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Edit Public Description
Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
SECM
Mission
Operational Civil Imaging
Bus & Motor
CX-6, Unknown motor
Mass
60 kg wet, 60 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 0.5 m
Radar Cross Section
0.388 m², Medium (>0.1 m² and < 1m²)
Expand to show TLE details & historyLast TLE update: 23 hours ago
TLE from 23 hours ago
0 YIJIAN
1 41899U 16081B 25259.23171138 .00000724 00000-0 16025-3 0 9996
2 41899 98.5186 244.0380 0022431 76.8851 283.4850 14.60187766464604Epoch: 2025-09-16T05:33Z
TLE epoch observation values (Epoch: 2025-09-16T05:33:39.863Z)
Latitude
0.00002°
Longitude
165.19693°
Altitude
691.878 km
Speed
7.512 km/s
True Right ascension
16h 16m 09s
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
21:37:44
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
705.517 km
Perigee altitude
673.81 km
Semi-major axis
7,067.801 km
Eccentricity
0.00224
Inclination
98.5186°
RAAN
244.038°
Arg. of periapsis
76.8851°
True anomaly
283.23488°
Mean anomaly
283.485°
Eccentric anomaly
283.35996°
Mean motion
3.65272 °/min
Orbital period
98.56 mins
BSTAR
0.00016025
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Other satellites on launch #81 in the year 2016 (2016-12-21 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.YIJIAN 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 | 2025-09-17 11:43:41.455Z | 20.925° NNE | 2025-09-17 11:47:41.455Z | 75.237° E | 40.523° | 2025-09-17 11:51:41.455Z | 179.65° S |
| 7 mins | 2025-09-17 22:48:41.455Z | 149.775° SSE | 2025-09-17 22:51:41.455Z | 79.986° E | 41.706° | 2025-09-17 22:55:41.455Z | 354.825° N |
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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