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: 15 hours ago
TLE from 15 hours ago
0 YIJIAN
1 41899U 16081B 26264.57078124 .00000348 00000-0 81436-4 0 9992
2 41899 98.5446 265.4918 0021179 14.2646 345.9147 14.60857390518669Epoch: 2026-09-21T13:41Z
TLE epoch observation values (Epoch: 2026-09-21T13:41:55.499Z)
Latitude
-0.00001°
Longitude
59.56185°
Altitude
678.861 km
Speed
7.525 km/s
True Right ascension
17h 41m 58s
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
21:42:23
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
702.467 km
Perigee altitude
672.539 km
Semi-major axis
7,065.64 km
Eccentricity
0.00212
Inclination
98.5446°
RAAN
265.4918°
Arg. of periapsis
14.2646°
True anomaly
345.85548°
Mean anomaly
345.9147°
Eccentric anomaly
345.88511°
Mean motion
3.6544 °/min
Orbital period
98.51 mins
BSTAR
0.000081436
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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 | 2026-09-22 13:17:36.390Z | 5.164° NNE | 2026-09-22 13:20:36.390Z | 299.905° NW | 69.047° | 2026-09-22 13:24:36.390Z | 204.672° SW |
| 8 mins | 2026-09-23 00:20:36.390Z | 177.247° S | 2026-09-23 00:23:36.390Z | 224.958° SW | 64.124° | 2026-09-23 00:28:36.390Z | 341.367° 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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