STARLINK-5507, 55638

Orbit data source: Space-Track

STARLINK-5507, 55638 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 17 Feb 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/55638?theme=dark&initialShowStats=false

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ISO8601 Format

Identifier

55638, 2023-021L

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)

2023-02-17 (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

13.562 m², Large (>1 m²)

Expand to show TLE details & history
Last TLE update: 9 hours ago

TLE from 9 hours ago

0 STARLINK-5507
1 55638U 23021L   26091.41756620  .00000059  00000-0  12757-4 0  9994
2 55638  69.9995 147.1117 0003403 268.9747  91.1023 14.98322428171706

Epoch: 2026-04-01T10:01Z

TLE epoch observation values (Epoch: 2026-04-01T10:01:17.719Z)

Latitude

0.00004°

Longitude

167.00719°

Altitude

574.549 km

Speed

7.574 km/s

True Right ascension

09h 48m 26s

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

00:38:40

Azimuth

Unknown

Elevation

Unknown

Doppler factor

Unknown

Orbital elements

Apogee altitude

572.392 km

Perigee altitude

567.663 km

Semi-major axis

6,948.165 km

Eccentricity

0.00034

Inclination

69.9995°

RAAN

147.1117°

Arg. of periapsis

268.9747°

True anomaly

91.14129°

Mean anomaly

91.1023°

Eccentric anomaly

91.12179°

Mean motion

3.74747 °/min

Orbital period

96.06 mins

BSTAR

0.000012757

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Other satellites on launch #21 in the year 2023 (2023-02-17 UTC)

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STARLINK-5507 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	2026-04-02 05:24:33.108Z	226.42° WSW	2026-04-02 05:26:33.108Z	281.871° WNW	39.808°	2026-04-02 05:30:33.108Z	15.413° NNE
5 mins	2026-04-02 13:48:33.108Z	11.892° NNE	2026-04-02 13:50:33.108Z	49.266° ENE	23.203°	2026-04-02 13:53:33.108Z	106.78° ESE
5 mins	2026-04-02 15:27:33.108Z	288.119° WNW	2026-04-02 15:29:33.108Z	242.703° WSW	23.488°	2026-04-02 15:32:33.108Z	197.096° SSW

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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-5507, 55638 on other resources

View STARLINK-5507, 55638 on NASA - NSSDCA Website

View STARLINK-5507, 55638 on Heavens-Above

View STARLINK-5507, 55638 on Keep Track

View STARLINK-5507, 55638 on Celestrak

View STARLINK-5507, 55638 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-5507, 55638

Orbit data source: Space-Track

Expand to show TLE details & historyLast TLE update: 9 hours ago

TLE from 9 hours ago

TLE epoch observation values (Epoch: 2026-04-01T10:01:17.719Z)

Visualization orbit readout

Visualization observer readout

Orbital elements

Other satellites on launch #21 in the year 2023 (2023-02-17 UTC)

STARLINK-5507 Visibility forecast

Co-orbital & Co-planar RSOs

Check out STARLINK-5507, 55638 on other resources

Documentation

Expand to show TLE details & history
Last TLE update: 9 hours ago