STARLINK-5373, 55490
Orbit data source: Space-Track
STARLINK-5373, 55490 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 02 Feb 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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55490 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Operational spacecraft
Bus & Motor
STARLINK, Unknown motor
Mass
305 kg wet, ~290 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown shape, 10.1 m
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 1 day ago
TLE from 1 day ago
0 STARLINK-5373
1 55490U 23015AT 26082.83091821 .00002566 00000-0 10520-3 0 9994
2 55490 43.0002 259.3722 0002721 307.5231 52.5373 15.26783715172760Epoch: 2026-03-23T19:56Z
TLE epoch observation values (Epoch: 2026-03-23T19:56:31.333Z)
Latitude
-0°
Longitude
138.92436°
Altitude
484.075 km
Speed
7.626 km/s
True Right ascension
17h 17m 29s
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
07:38:09
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
489.247 km
Perigee altitude
485.511 km
Semi-major axis
6,865.516 km
Eccentricity
0.00027
Inclination
43.0002°
RAAN
259.3722°
Arg. of periapsis
307.5231°
True anomaly
52.56205°
Mean anomaly
52.5373°
Eccentric anomaly
52.54968°
Mean motion
3.81534 °/min
Orbital period
94.36 mins
BSTAR
0.0001052
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Other satellites on launch #15 in the year 2023 (2023-02-02 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-5373 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 | 2026-03-25 14:32:20.521Z | 217.888° SW | 2026-03-25 14:35:20.521Z | 153.975° SSE | 32.161° | 2026-03-25 14:38:20.521Z | 85.127° E |
| 5 mins | 2026-03-25 16:12:20.521Z | 271.153° WNW | 2026-03-25 16:14:20.521Z | 349.958° N | 42.422° | 2026-03-25 16:17:20.521Z | 69.03° E |
| 5 mins | 2026-03-25 17:51:20.521Z | 294.522° NW | 2026-03-25 17:53:20.521Z | 348.283° N | 38.586° | 2026-03-25 17:56:20.521Z | 80.323° E |
| 6 mins | 2026-03-25 19:30:20.521Z | 281.286° WNW | 2026-03-25 19:32:20.521Z | 238.875° WSW | 41.435° | 2026-03-25 19:36:20.521Z | 120.875° SE |
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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