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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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Iframe URL

https://www.satcat.com/sats-embedded/43581?theme=dark&initialShowStats=false

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Identifier

43581, 2018-062A

Orbit

MEO

Country

CN / PRC

Related business

China National Space Administration (CN)

Manufacturer

CAST

Mission

Operational Defense Navigation

Bus & Motor

BD-3M, Unknown motor

Mass

1,014 kg wet, ~850 kg dry

Launch date (UTC)

2018-07-29 (7 years ago)

Launch vehicle

CHANG ZHENG 3B/YZ-1

Launch site

Xichang Space Center, China (XSC)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 2 Pan, 5.0 m

Radar Cross Section

8.984 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 20 hours ago

TLE from 20 hours ago

0 BEIDOU 3M9
1 43581U 18062A   25341.41395974  .00000059  00000-0  00000-0 0  9999
2 43581  54.0890 188.8244 0002124 353.2088   6.8590  1.86228654 50063

Epoch: 2025-12-07T09:56Z

TLE epoch observation values (Epoch: 2025-12-07T09:56:06.121Z)

Latitude

-0.00008°

Longitude

-36.62084°

Altitude

21,522.654 km

Speed

3.78 km/s

True Right ascension

12h 35m 19s

True Declination

0° 00' 00"

Sunlit

Object was in daylight at epoch

Visualization orbit readout

Latitude

Unknown

Longitude

Unknown

Altitude

Unknown

Speed

Unknown

Apparent Right ascension

Unknown

Apparent Declination

Unknown

Sunlit

N/A

Visualization observer readout

Local Sidereal Time

04:20:10

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

21,534.256 km

Perigee altitude

21,522.401 km

Semi-major axis

27,906.465 km

Eccentricity

0.00021

Inclination

54.089°

RAAN

188.8244°

Arg. of periapsis

353.2088°

True anomaly

6.86191°

Mean anomaly

6.859°

Eccentric anomaly

6.86045°

Mean motion

0.46557 °/min

Orbital period

773.24 mins

BSTAR

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Other satellites on launch #62 in the year 2018 (2018-07-29 UTC)

BEIDOU 3M10, 43582

YZ-1 R/B, 43584

CZ-3B R/B, 43583 (Decayed)

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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.

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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.
274 mins	2025-12-08 11:00:36.775Z	138.108° SSE	2025-12-08 13:19:36.775Z	82.058° E	34.39°	2025-12-08 15:34:36.775Z	42.85° NE
131 mins	2025-12-09 04:00:36.775Z	321.506° NNW	2025-12-09 05:11:36.775Z	297.127° NW	18.118°	2025-12-09 06:11:36.775Z	273.646° WNW

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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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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

CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings

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Check out BEIDOU 3M9, 43581 on other resources

View BEIDOU 3M9, 43581 on NASA - NSSDCA Website

View BEIDOU 3M9, 43581 on Heavens-Above

View BEIDOU 3M9, 43581 on Keep Track

View BEIDOU 3M9, 43581 on Celestrak

View BEIDOU 3M9, 43581 on Gunter's Space Page

Satcat and Kayhan Space are not affiliated with NASA, Celestrak, Heavens-Above, Keep Track, or Gunter's Space Page.

BEIDOU 3M9, 43581

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 20 hours ago

TLE from 20 hours ago

TLE epoch observation values (Epoch: 2025-12-07T09:56:06.121Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #62 in the year 2018 (2018-07-29 UTC)

BEIDOU 3M9 Visibility forecast

Co-orbital & Co-planar RSOs

Check out BEIDOU 3M9, 43581 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 20 hours ago