STARLINK-5742, 55583
Orbit data source: Space-Track
STARLINK-5742, 55583 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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55583 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: 7 hours ago
TLE from 7 hours ago
0 STARLINK-5742
1 55583U 23020Q 26264.23997178 -.00000106 00000-0 56735-5 0 9998
2 55583 43.0031 340.4988 0001286 273.8005 86.2699 15.27574374198820Epoch: 2026-09-21T05:45Z
TLE epoch observation values (Epoch: 2026-09-21T05:45:33.561Z)
Latitude
-0.00008°
Longitude
-106.01376°
Altitude
482.784 km
Speed
7.626 km/s
True Right ascension
22h 41m 59s
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
06:00:05
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.893 km
Perigee altitude
484.128 km
Semi-major axis
6,863.148 km
Eccentricity
0.00013
Inclination
43.0031°
RAAN
340.4988°
Arg. of periapsis
273.8005°
True anomaly
86.28461°
Mean anomaly
86.2699°
Eccentric anomaly
86.27725°
Mean motion
3.81732 °/min
Orbital period
94.31 mins
BSTAR
0.0000056735
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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-5742 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 | 2026-09-21 14:03:52.950Z | 281.493° WNW | 2026-09-21 14:06:52.950Z | 233.869° WSW | 46.314° | 2026-09-21 14:10:52.950Z | 131.39° SE |
| 6 mins | 2026-09-22 08:39:52.950Z | 226.647° WSW | 2026-09-22 08:42:52.950Z | 127.023° SE | 50.142° | 2026-09-22 08:45:52.950Z | 77.832° E |
| 6 mins | 2026-09-22 10:18:52.950Z | 276.084° WNW | 2026-09-22 10:21:52.950Z | 23.489° NE | 52.851° | 2026-09-22 10:24:52.950Z | 70.453° E |
| 5 mins | 2026-09-22 11:58:52.950Z | 299.74° NW | 2026-09-22 12:00:52.950Z | 26.76° NE | 57.198° | 2026-09-22 12:03:52.950Z | 88.099° E |
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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