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: 13 hours ago
TLE from 13 hours ago
0 STARLINK-5738
1 55573U 23020E 25345.12505832 .00001566 00000-0 13091-3 0 9992
2 55573 43.0011 126.1514 0001062 253.1555 106.9171 15.02547752155599Epoch: 2025-12-11T03:00Z
TLE epoch observation values (Epoch: 2025-12-11T03:00:05.038Z)
Latitude
-0.00003°
Longitude
1.04485°
Altitude
559.036 km
Speed
7.584 km/s
True Right ascension
08h 24m 36s
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
14:04:00
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
561.704 km
Perigee altitude
560.23 km
Semi-major axis
6,939.104 km
Eccentricity
0.00011
Inclination
43.0011°
RAAN
126.1514°
Arg. of periapsis
253.1555°
True anomaly
106.92874°
Mean anomaly
106.9171°
Eccentric anomaly
106.92292°
Mean motion
3.75481 °/min
Orbital period
95.88 mins
BSTAR
0.00013091
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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 | 2025-12-11 16:07:03.201Z | 285.363° WNW | 2025-12-11 16:11:03.201Z | 17.194° NNE | 39.466° | 2025-12-11 16:14:03.201Z | 79.529° E |
| 6 mins | 2025-12-11 17:49:03.201Z | 284.665° WNW | 2025-12-11 17:52:03.201Z | 149.099° SSE | 43.09° | 2025-12-11 17:55:03.201Z | 116.901° SE |
| 4 mins | 2025-12-11 19:30:03.201Z | 250.371° W | 2025-12-11 19:32:03.201Z | 214.359° SW | 18.833° | 2025-12-11 19:34:03.201Z | 180.056° SSW |
| 7 mins | 2025-12-12 12:43:03.201Z | 222.832° SW | 2025-12-12 12:46:03.201Z | 164.958° S | 36.158° | 2025-12-12 12:50:03.201Z | 79.333° E |
| 7 mins | 2025-12-12 14:24:03.201Z | 270.352° WNW | 2025-12-12 14:27:03.201Z | 359.443° N | 42.099° | 2025-12-12 14:31:03.201Z | 71.925° E |
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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