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: 7 hours ago
TLE from 7 hours ago
0 YIJIAN
1 41899U 16081B 26038.45586712 .00001246 00000-0 26605-3 0 9999
2 41899 98.5326 32.3883 0020852 353.7571 6.3366 14.60572115485655Epoch: 2026-02-07T10:56Z
TLE epoch observation values (Epoch: 2026-02-07T10:56:26.919Z)
Latitude
0.00005°
Longitude
90.69699°
Altitude
679.649 km
Speed
7.525 km/s
True Right ascension
02h 09m 33s
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
19:40:16
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
703.158 km
Perigee altitude
673.688 km
Semi-major axis
7,066.56 km
Eccentricity
0.00209
Inclination
98.5326°
RAAN
32.3883°
Arg. of periapsis
353.7571°
True anomaly
6.36304°
Mean anomaly
6.3366°
Eccentric anomaly
6.34981°
Mean motion
3.65368 °/min
Orbital period
98.53 mins
BSTAR
0.00026605
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-02-07 22:35:21.052Z | 121.125° SE | 2026-02-07 22:39:21.052Z | 56.792° ENE | 23.473° | 2026-02-07 22:42:21.052Z | 14.03° NNE |
| 6 mins | 2026-02-08 00:13:21.052Z | 211.302° SW | 2026-02-08 00:16:21.052Z | 266.246° W | 26.35° | 2026-02-08 00:19:21.052Z | 317.256° NNW |
| 7 mins | 2026-02-08 12:11:21.052Z | 23.995° NE | 2026-02-08 12:14:21.052Z | 87.433° E | 41.931° | 2026-02-08 12:18:21.052Z | 181.81° 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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