STARLINK-5575, 55381
Orbit data source: Space-Track
STARLINK-5575, 55381 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 26 Jan 2023 UTC via an FALCON 9 launch vehicle from the Air Force Eastern Test Range (AFETR). 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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55381 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Operational Commercial Communications
Bus & Motor
STARLINK, Unknown motor
Mass
305 kg wet, ~290 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 10.1 m
Radar Cross Section
13.562 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 STARLINK-5575
1 55381U 23013BC 26171.17288552 -.00000121 00000-0 51182-5 0 9993
2 55381 43.0026 99.5924 0001039 251.1524 108.9215 15.27577592187170Epoch: 2026-06-20T04:08Z
TLE epoch observation values (Epoch: 2026-06-20T04:08:57.308Z)
Latitude
-0.00004°
Longitude
128.96226°
Altitude
483.063 km
Speed
7.626 km/s
True Right ascension
06h 38m 22s
True Declination
0° 00' 00"
Sunlit
Visualization orbit readout
Latitude
Unknown
Longitude
Unknown
Altitude
Unknown
Speed
Unknown
Apparent Right ascension
Unknown
Apparent Declination
Unknown
Sunlit
Visualization observer readout
Local Sidereal Time
21:40:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.714 km
Perigee altitude
484.288 km
Semi-major axis
6,863.138 km
Eccentricity
0.0001
Inclination
43.0026°
RAAN
99.5924°
Arg. of periapsis
251.1524°
True anomaly
108.93276°
Mean anomaly
108.9215°
Eccentric anomaly
108.92713°
Mean motion
3.81732 °/min
Orbital period
94.31 mins
BSTAR
0.0000051182
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Other satellites on launch #13 in the year 2023 (2023-01-26 UTC)
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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.STARLINK-5575 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-06-22 22:18:40.824Z | 233.708° WSW | 2026-06-22 22:20:40.824Z | 148.219° SSE | 42.705° | 2026-06-22 22:23:40.824Z | 75.913° E |
| 5 mins | 2026-06-22 23:57:40.824Z | 285.964° WNW | 2026-06-22 23:59:40.824Z | 356.251° N | 38.926° | 2026-06-23 00:02:40.824Z | 70.492° E |
| 5 mins | 2026-06-23 01:36:40.824Z | 294.48° NW | 2026-06-23 01:38:40.824Z | 351.236° N | 42.157° | 2026-06-23 01:41:40.824Z | 93.43° ESE |
| 5 mins | 2026-06-23 03:15:40.824Z | 266.043° W | 2026-06-23 03:17:40.824Z | 210.909° SW | 31.809° | 2026-06-23 03:20:40.824Z | 143.362° SSE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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 |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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