STARLINK-5864, 55940

Orbit data source: Space-Track

STARLINK-5864, 55940 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 17 Mar 2023 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). 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/55940?theme=dark&initialShowStats=false

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Identifier

55940, 2023-037AC

Orbit

LEO

Country

Related business

SpaceX (US)

Manufacturer

SpaceX/Seattle

Mission

Operational Commercial Communications

Bus & Motor

STARLINK, Unknown motor

Mass

305 kg wet, ~290 kg dry

Launch date (UTC)

2023-03-17 (3 years ago)

Launch vehicle

FALCON 9

Launch site

Air Force Western Test Range (AFWTR)

Object type

Payload

Rocket body

Debris

Shape & HBR

Box + 1 Pan, 10.1 m

Radar Cross Section

11.087 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 18 hours ago

TLE from 18 hours ago

0 STARLINK-5864
1 55940U 23037AC  25348.85983809 -.00000300  00000-0 -17337-4 0  9990
2 55940  69.9994 138.3363 0003041 281.8328  78.2490 14.98332109151274

Epoch: 2025-12-14T20:38Z

TLE epoch observation values (Epoch: 2025-12-14T20:38:10.010Z)

Latitude

-0.00004°

Longitude

105.02787°

Altitude

574.043 km

Speed

7.574 km/s

True Right ascension

09h 13m 20s

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

13:25:37

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

572.111 km

Perigee altitude

567.885 km

Semi-major axis

6,948.135 km

Eccentricity

0.0003

Inclination

69.9994°

RAAN

138.3363°

Arg. of periapsis

281.8328°

True anomaly

78.28312°

Mean anomaly

78.249°

Eccentric anomaly

78.26606°

Mean motion

3.74749 °/min

Orbital period

96.06 mins

BSTAR

-0.000017337

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Other satellites on launch #37 in the year 2023 (2023-03-17 UTC)

FALCON 9 DEB, 55968 (Decayed)

STARLINK-5855, 55917

STARLINK-5848, 55932

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STARLINK-5864 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.
6 mins	2025-12-15 21:14:02.628Z	333.213° NNW	2025-12-15 21:17:02.628Z	188.349° SSW	44.309°	2025-12-15 21:20:02.628Z	159.86° S
6 mins	2025-12-16 11:14:02.628Z	191.273° SSW	2025-12-16 11:17:02.628Z	73.11° E	41.946°	2025-12-16 11:20:02.628Z	30.668° NE

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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 STARLINK-5864, 55940 on other resources

View STARLINK-5864, 55940 on NASA - NSSDCA Website

View STARLINK-5864, 55940 on Heavens-Above

View STARLINK-5864, 55940 on Keep Track

View STARLINK-5864, 55940 on Celestrak

View STARLINK-5864, 55940 on Gunter's Space Page

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

STARLINK-5864, 55940

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 18 hours ago

TLE from 18 hours ago

TLE epoch observation values (Epoch: 2025-12-14T20:38:10.010Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #37 in the year 2023 (2023-03-17 UTC)

STARLINK-5864 Visibility forecast

Co-orbital & Co-planar RSOs

Check out STARLINK-5864, 55940 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 18 hours ago