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 26308.26881349 .00000336 00000-0 78900-4 0 9997
2 41899 98.5446 310.5777 0019869 233.8761 126.0600 14.60897062525046Epoch: 2026-11-04T06:27Z
TLE epoch observation values (Epoch: 2026-11-04T06:27:05.485Z)
Latitude
-0.00001°
Longitude
170.28529°
Altitude
701.541 km
Speed
7.501 km/s
True Right ascension
20h 42m 18s
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
14:32:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
701.414 km
Perigee altitude
673.337 km
Semi-major axis
7,065.512 km
Eccentricity
0.00199
Inclination
98.5446°
RAAN
310.5777°
Arg. of periapsis
233.8761°
True anomaly
126.24379°
Mean anomaly
126.06°
Eccentric anomaly
126.15192°
Mean motion
3.6545 °/min
Orbital period
98.51 mins
BSTAR
0.0000789
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-11-04 23:02:58.739Z | 101.171° ESE | 2026-11-04 23:05:58.739Z | 60.599° ENE | 17.027° | 2026-11-04 23:07:58.739Z | 32.668° NE |
| 7 mins | 2026-11-05 00:39:58.739Z | 191.375° SSW | 2026-11-05 00:42:58.739Z | 268.023° W | 52.043° | 2026-11-05 00:46:58.739Z | 334.87° NNW |
| 7 mins | 2026-11-05 12:37:58.739Z | 38.705° NE | 2026-11-05 12:40:58.739Z | 94.756° ESE | 36.861° | 2026-11-05 12:44:58.739Z | 163.455° S |
| 5 mins | 2026-11-05 14:15:58.739Z | 331.803° NNW | 2026-11-05 14:17:58.739Z | 300.284° NW | 22.17° | 2026-11-05 14:20:58.739Z | 252.349° W |
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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