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 25295.20565656 .00001470 00000-0 31392-3 0 9998
2 41899 98.5231 281.0173 0020401 328.2200 31.7767 14.60301699469859Epoch: 2025-10-22T04:56Z
TLE epoch observation values (Epoch: 2025-10-22T04:56:08.726Z)
Latitude
-0.00001°
Longitude
176.09834°
Altitude
682.919 km
Speed
7.522 km/s
True Right ascension
18h 44m 04s
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
06:47:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
703.714 km
Perigee altitude
674.878 km
Semi-major axis
7,067.433 km
Eccentricity
0.00204
Inclination
98.5231°
RAAN
281.0173°
Arg. of periapsis
328.22°
True anomaly
31.90008°
Mean anomaly
31.7767°
Eccentric anomaly
31.83836°
Mean motion
3.65301 °/min
Orbital period
98.55 mins
BSTAR
0.00031392
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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 | 2025-10-22 12:05:15.951Z | 13.846° NNE | 2025-10-22 12:09:15.951Z | 183.304° SSW | 44.754° | 2025-10-22 12:13:15.951Z | 194.048° SSW |
| 8 mins | 2025-10-22 23:08:15.951Z | 165.437° S | 2025-10-22 23:12:15.951Z | 167.285° S | 44.615° | 2025-10-22 23:16:15.951Z | 346.531° N |
| 6 mins | 2025-10-23 11:08:15.951Z | 53.251° ENE | 2025-10-23 11:11:15.951Z | 101.303° ESE | 20.747° | 2025-10-23 11:14:15.951Z | 143.257° 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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