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 26084.69643689 .00000673 00000-0 14826-3 0 9998
2 41899 98.5371 80.0229 0020340 204.1425 155.8823 14.60656060492409Epoch: 2026-03-25T16:42Z
TLE epoch observation values (Epoch: 2026-03-25T16:42:52.147Z)
Latitude
-0°
Longitude
6.14959°
Altitude
707.163 km
Speed
7.495 km/s
True Right ascension
05h 20m 05s
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
10:08:00
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
702.525 km
Perigee altitude
673.78 km
Semi-major axis
7,066.29 km
Eccentricity
0.00203
Inclination
98.5371°
RAAN
80.0229°
Arg. of periapsis
204.1425°
True anomaly
155.97732°
Mean anomaly
155.8823°
Eccentric anomaly
155.92983°
Mean motion
3.65389 °/min
Orbital period
98.53 mins
BSTAR
0.00014826
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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 | 2026-03-26 11:23:51.185Z | 53.219° ENE | 2026-03-26 11:26:51.185Z | 94.089° ESE | 16.118° | 2026-03-26 11:28:51.185Z | 123.258° SE |
| 7 mins | 2026-03-26 13:01:51.185Z | 350.411° N | 2026-03-26 13:04:51.185Z | 273.324° WNW | 35.207° | 2026-03-26 13:08:51.185Z | 216.26° SW |
| 5 mins | 2026-03-26 22:28:51.185Z | 94.187° ESE | 2026-03-26 22:30:51.185Z | 63.314° ENE | 18.125° | 2026-03-26 22:33:51.185Z | 22.289° NNE |
| 7 mins | 2026-03-27 00:04:51.185Z | 195.53° SSW | 2026-03-27 00:07:51.185Z | 258.894° W | 35.389° | 2026-03-27 00:11:51.185Z | 331.065° NNW |
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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