STARLINK-5738, 55573
Orbit data source: Space-Track
STARLINK-5738, 55573 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sun, 12 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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55573 intel report (Beta)
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Edit Public Description
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: 9 hours ago
TLE from 9 hours ago
0 STARLINK-5738
1 55573U 23020E 25340.87049557 .00001059 00000-0 93448-4 0 9998
2 55573 43.0023 149.2721 0001320 268.3113 91.7579 15.02533857154956Epoch: 2025-12-06T20:53Z
TLE epoch observation values (Epoch: 2025-12-06T20:53:30.817Z)
Latitude
0.00005°
Longitude
120.00172°
Altitude
558.892 km
Speed
7.584 km/s
True Right ascension
09h 57m 05s
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
04:18:28
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
561.926 km
Perigee altitude
560.094 km
Semi-major axis
6,939.147 km
Eccentricity
0.00013
Inclination
43.0023°
RAAN
149.2721°
Arg. of periapsis
268.3113°
True anomaly
91.77302°
Mean anomaly
91.7579°
Eccentric anomaly
91.76546°
Mean motion
3.75478 °/min
Orbital period
95.88 mins
BSTAR
0.000093448
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Other satellites on launch #20 in the year 2023 (2023-02-12 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-5738 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-12-07 14:38:50.557Z | 216.669° SW | 2025-12-07 14:41:50.557Z | 157.147° SSE | 33.341° | 2025-12-07 14:45:50.557Z | 80.717° E |
| 6 mins | 2025-12-07 16:19:50.557Z | 266.955° W | 2025-12-07 16:22:50.557Z | 15.589° NNE | 42.56° | 2025-12-07 16:25:50.557Z | 69.603° E |
| 6 mins | 2025-12-07 18:00:50.557Z | 291.704° WNW | 2025-12-07 18:03:50.557Z | 26.733° NE | 39.66° | 2025-12-07 18:06:50.557Z | 82.936° E |
| 6 mins | 2025-12-07 19:41:50.557Z | 281.067° WNW | 2025-12-07 19:43:50.557Z | 244.98° WSW | 41.178° | 2025-12-07 19:47:50.557Z | 122.3° SE |
| 4 mins | 2025-12-07 21:22:50.557Z | 245.766° WSW | 2025-12-07 21:24:50.557Z | 212.261° SW | 15.896° | 2025-12-07 21:26:50.557Z | 182.203° SSW |
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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