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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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: 12 hours ago
TLE from 12 hours ago
0 YIJIAN
1 41899U 16081B 26128.26322397 .00000537 00000-0 12015-3 0 9997
2 41899 98.5378 124.9284 0022176 73.4654 286.8980 14.60716813498762Epoch: 2026-05-08T06:19Z
TLE epoch observation values (Epoch: 2026-05-08T06:19:02.551Z)
Latitude
0.00001°
Longitude
164.07025°
Altitude
689.31 km
Speed
7.514 km/s
True Right ascension
08h 19m 42s
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
02:03:58
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
703.626 km
Perigee altitude
672.287 km
Semi-major axis
7,066.093 km
Eccentricity
0.00222
Inclination
98.5378°
RAAN
124.9284°
Arg. of periapsis
73.4654°
True anomaly
286.65466°
Mean anomaly
286.898°
Eccentric anomaly
286.77635°
Mean motion
3.65405 °/min
Orbital period
98.52 mins
BSTAR
0.00012015
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-05-08 22:54:08.968Z | 119.437° SE | 2026-05-08 22:57:08.968Z | 70.62° E | 24.689° | 2026-05-08 23:00:08.968Z | 18.522° NNE |
| 6 mins | 2026-05-09 00:32:08.968Z | 217.104° SW | 2026-05-09 00:34:08.968Z | 251.714° W | 24.739° | 2026-05-09 00:38:08.968Z | 319.462° NNW |
| 7 mins | 2026-05-09 12:30:08.968Z | 24.835° NE | 2026-05-09 12:33:08.968Z | 133.779° SE | 41.984° | 2026-05-09 12:37:08.968Z | 184.987° SSW |
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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