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: 1 day ago
TLE from 1 day ago
0 BEIDOU 3M9
1 43581U 18062A 26262.07439141 -.00000025 00000-0 00000-0 0 9993
2 43581 54.0825 179.1139 0003909 314.9426 45.0471 1.86229013 55382Epoch: 2026-09-19T01:47Z
TLE epoch observation values (Epoch: 2026-09-19T01:47:07.417Z)
Latitude
0.00003°
Longitude
154.34387°
Altitude
21,520.794 km
Speed
3.78 km/s
True Right ascension
11h 56m 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
04:41:56
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
21,539.201 km
Perigee altitude
21,517.384 km
Semi-major axis
27,906.43 km
Eccentricity
0.00039
Inclination
54.0825°
RAAN
179.1139°
Arg. of periapsis
314.9426°
True anomaly
45.07881°
Mean anomaly
45.0471°
Eccentric anomaly
45.06295°
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. |
|---|---|---|---|---|---|---|---|
| 284 mins | 2026-09-20 15:39:52.834Z | 141.912° SSE | 2026-09-20 18:03:52.834Z | 83.462° E | 45.861° | 2026-09-20 20:23:52.834Z | 43.999° NE |
| 128 mins | 2026-09-21 08:50:52.834Z | 321.078° NNW | 2026-09-21 09:53:52.834Z | 299.23° NW | 17.027° | 2026-09-21 10:58:52.834Z | 274.435° 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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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 descending order |
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