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.
Focus sentinelFocus sentinel
Embed this page
Focus sentinelFocus sentinel
41899 intel report (Beta)
Focus sentinelFocus sentinel
Create New Watchlist
Focus sentinelFocus sentinel
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: 1 day ago
TLE from 1 day ago
0 YIJIAN
1 41899U 16081B 25312.47222362 .00001245 00000-0 26728-3 0 9998
2 41899 98.5247 298.7731 0019749 272.1057 87.7881 14.60346647472372Epoch: 2025-11-08T11:20Z
TLE epoch observation values (Epoch: 2025-11-08T11:20:00.120Z)
Latitude
-0.00001°
Longitude
80.87126°
Altitude
694.519 km
Speed
7.509 km/s
True Right ascension
19h 55m 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
13:04:13
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
703.108 km
Perigee altitude
675.194 km
Semi-major axis
7,067.288 km
Eccentricity
0.00197
Inclination
98.5247°
RAAN
298.7731°
Arg. of periapsis
272.1057°
True anomaly
88.01426°
Mean anomaly
87.7881°
Eccentric anomaly
87.90118°
Mean motion
3.65312 °/min
Orbital period
98.55 mins
BSTAR
0.00026728
Loading maneuver chart data...
Computing Atmospheric mass density...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Loading historical data...
Other satellites on launch #81 in the year 2016 (2016-12-21 UTC)
Did you know?
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
Loading observer location...
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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-11-09 22:01:15.527Z | 105.271° ESE | 2025-11-09 22:04:15.527Z | 64.943° ENE | 17.214° | 2025-11-09 22:07:15.527Z | 24.009° NE |
| 7 mins | 2025-11-09 23:38:15.527Z | 192.284° SSW | 2025-11-09 23:41:15.527Z | 253.615° W | 36.573° | 2025-11-09 23:45:15.527Z | 331.845° NNW |
| 7 mins | 2025-11-10 11:37:15.527Z | 40.656° NE | 2025-11-10 11:40:15.527Z | 109.243° ESE | 32.638° | 2025-11-10 11:44:15.527Z | 168.359° S |
| 5 mins | 2025-11-10 13:15:15.527Z | 325.357° NNW | 2025-11-10 13:17:15.527Z | 292.606° NW | 19.632° | 2025-11-10 13:20:15.527Z | 250.073° W |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
Click to sort rows by RSO header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Type header in ascending order | Click to sort rows by Inclination Δ header in ascending order | Click to sort rows by RAAN Δ header in ascending order | Click to sort rows by Coplanar Angle header in ascending order | Click to sort rows by SMA Δ header in ascending order | Click to sort rows by Orbital period header in ascending order | Click to sort rows by <5km Md TCA header in ascending order |
|---|
CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
Authenticating...
Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in ascending order |
|---|