Showing default

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.

Loading next visibility...

Iframe embed code

<iframe src="https://www.satcat.com/sats-embedded/43581?theme=dark&initialShowStats=false" width="600" height="400" frameborder="0" title="Kayhan Space Satcat Satellite Viewer"></iframe>

Iframe URL

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

Optional Secondary NORAD IDs

Max 10 NORAD IDs; Separated by commas

Initial load time (optional)

ISO8601 Format

TLE date request (optional)

ISO8601 Format

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 (8 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: 5 days ago

TLE from 5 days ago

0 BEIDOU 3M9
1 43581U 18062A   26077.89849727  .00000022  00000-0  00000-0 0  9998
2 43581  54.0868 185.3739 0002605 297.6211  62.3507  1.86228802 51951

Epoch: 2026-03-18T21:33Z

TLE epoch observation values (Epoch: 2026-03-18T21:33:50.164Z)

Latitude

0.00005°

Longitude

45.45478°

Altitude

21,525.154 km

Speed

3.78 km/s

True Right ascension

12h 21m 28s

True Declination

0° 00' 00"

Sunlit

Object was in full shadow 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

14:32:10

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

21,535.583 km

Perigee altitude

21,521.044 km

Semi-major axis

27,906.451 km

Eccentricity

0.00026

Inclination

54.0868°

RAAN

185.3739°

Arg. of periapsis

297.6211°

True anomaly

62.37715°

Mean anomaly

62.3507°

Eccentric anomaly

62.36392°

Mean motion

0.46557 °/min

Orbital period

773.24 mins

BSTAR

Loading maneuver chart data...

Computing Atmospheric mass density...

Loading historical data...

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

YZ-1 R/B, 43584

BEIDOU 3M10, 43582

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

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.

Click here to try in Sandbox

BEIDOU 3M9 Visibility forecast

Loading observer location...
Set 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.
107 mins	2026-03-24 09:25:09.448Z	50.407° ENE	2026-03-24 09:25:09.448Z	50.407° ENE	36.394°	2026-03-24 11:12:09.448Z	61.482° ENE
138 mins	2026-03-25 07:07:09.448Z	198.191° SSW	2026-03-25 09:25:09.448Z	222.039° SW	42.95°	2026-03-25 09:25:09.448Z	222.039° SW

Items per page:

1–2 of 2 items

of 1 page

Co-orbital & Co-planar RSOs

Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions

Please sign-in to view Co-orbital & Co-planar RSOs.

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

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 descending order

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: 5 days ago

TLE from 5 days ago

TLE epoch observation values (Epoch: 2026-03-18T21:33:50.164Z)

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: 5 days ago