BEIDOU 3M9, 43581
Orbit data source: Space-Track
BEIDOU 3M9, 43581 is a payload satellite owned by CNSA (CN) in MEO that was launched on Sun, 29 Jul 2018 UTC via a CHANG ZHENG 3B/YZ-1 launch vehicle from the Xichang Space Center, China (XSC). 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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43581 intel report (Beta)
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Identifier
Orbit
Country
CN / PRCRelated business
Manufacturer
CAST
Mission
Operational Defense Navigation
Bus & Motor
BD-3M, Unknown motor
Mass
1,014 kg wet, ~850 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 2 Pan, 5.0 m
Radar Cross Section
8.984 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 BEIDOU 3M9
1 43581U 18062A 26254.55697583 -.00000008 00000-0 00000-0 0 9994
2 43581 54.0829 179.3693 0004109 311.4726 48.4906 1.86228716 55245Epoch: 2026-09-11T13:22Z
TLE epoch observation values (Epoch: 2026-09-11T13:22:02.711Z)
Latitude
-0.00002°
Longitude
-11.72441°
Altitude
21,520.934 km
Speed
3.78 km/s
True Right ascension
11h 57m 27s
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
08:09:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
21,539.789 km
Perigee altitude
21,516.856 km
Semi-major axis
27,906.459 km
Eccentricity
0.00041
Inclination
54.0829°
RAAN
179.3693°
Arg. of periapsis
311.4726°
True anomaly
48.52587°
Mean anomaly
48.4906°
Eccentric anomaly
48.50823°
Mean motion
0.46557 °/min
Orbital period
773.24 mins
BSTAR
0
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Other satellites on launch #62 in the year 2018 (2018-07-29 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.BEIDOU 3M9 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. |
|---|---|---|---|---|---|---|---|
| 285 mins | 2026-09-13 16:07:15.643Z | 142.039° SSE | 2026-09-13 18:31:15.643Z | 83.908° E | 45.8° | 2026-09-13 20:52:15.643Z | 43.969° NE |
| 130 mins | 2026-09-14 09:18:15.643Z | 321.279° NNW | 2026-09-14 10:21:15.643Z | 299.524° NW | 17.079° | 2026-09-14 11:28:15.643Z | 273.98° WNW |
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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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