STARLINK-5859, 55915

Orbit data source: Space-Track

STARLINK-5859, 55915 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 src="https://www.satcat.com/sats-embedded/55915?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/55915?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

55915, 2023-037B

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: 7 hours ago

TLE from 7 hours ago

0 STARLINK-5859
1 55915U 23037B   25349.89067599 -.00005592  00000-0 -46105-3 0  9998
2 55915  69.9991 155.7933 0002939 267.3697  92.7126 14.98346026151621

Epoch: 2025-12-15T21:22Z

TLE epoch observation values (Epoch: 2025-12-15T21:22:34.405Z)

Latitude

0.00001°

Longitude

110.3672°

Altitude

574.527 km

Speed

7.574 km/s

True Right ascension

10h 23m 10s

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

03:07:56

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

571.997 km

Perigee altitude

567.913 km

Semi-major axis

6,948.092 km

Eccentricity

0.00029

Inclination

69.9991°

RAAN

155.7933°

Arg. of periapsis

267.3697°

True anomaly

92.74624°

Mean anomaly

92.7126°

Eccentric anomaly

92.72942°

Mean motion

3.74753 °/min

Orbital period

96.06 mins

BSTAR

-0.00046105

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

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STARLINK-5859 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	2025-12-16 11:55:07.583Z	160.792° S	2025-12-16 11:58:07.583Z	112.828° SE	23.245°	2025-12-16 12:01:07.583Z	56.561° ENE
6 mins	2025-12-16 13:34:07.583Z	254.572° W	2025-12-16 13:36:07.583Z	290.472° WNW	23.374°	2025-12-16 13:40:07.583Z	0.377° NNE
6 mins	2025-12-16 21:58:07.583Z	350.954° N	2025-12-16 22:01:07.583Z	88.124° E	38.611°	2025-12-16 22:04:07.583Z	139.621° SSE

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

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Check out STARLINK-5859, 55915 on other resources

View STARLINK-5859, 55915 on NASA - NSSDCA Website

View STARLINK-5859, 55915 on Heavens-Above

View STARLINK-5859, 55915 on Keep Track

View STARLINK-5859, 55915 on Celestrak

View STARLINK-5859, 55915 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-5859, 55915

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 7 hours ago

TLE from 7 hours ago

TLE epoch observation values (Epoch: 2025-12-15T21:22:34.405Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

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

STARLINK-5859 Visibility forecast

Co-orbital & Co-planar RSOs

Check out STARLINK-5859, 55915 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 7 hours ago