STARLINK-5439, 54783
Orbit data source: Space-Track
STARLINK-5439, 54783 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sat, 17 Dec 2022 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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54783 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-5439
1 54783U 22175AB 26171.41668980 .00018232 00000-0 98703-3 0 9999
2 54783 53.1593 287.7576 0002115 86.4011 108.3998 15.14700514 5838Epoch: 2026-06-20T10:00Z
TLE epoch observation values (Epoch: 2026-06-20T10:00:01.998Z)
Latitude
-11.9617°
Longitude
58.19994°
Altitude
525.56 km
Speed
7.601 km/s
True Right ascension
07h 47m 21s
True Declination
-11° 53' 23"
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
21:45:19
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
523.602 km
Perigee altitude
520.683 km
Semi-major axis
6,900.28 km
Eccentricity
0.00021
Inclination
53.1593°
RAAN
287.7576°
Arg. of periapsis
86.4011°
True anomaly
108.4228°
Mean anomaly
108.3998°
Eccentric anomaly
108.4113°
Mean motion
3.78654 °/min
Orbital period
95.07 mins
BSTAR
0.00098703
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Other satellites on launch #175 in the year 2022 (2022-12-17 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-5439 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-06-22 12:06:15.935Z | 304.785° NW | 2026-06-22 12:08:15.935Z | 336.938° NNW | 15.848° | 2026-06-22 12:10:15.935Z | 12.275° NNE |
| 4 mins | 2026-06-22 15:27:15.935Z | 348.965° N | 2026-06-22 15:29:15.935Z | 33.219° NE | 21.798° | 2026-06-22 15:31:15.935Z | 70.989° E |
| 5 mins | 2026-06-22 17:06:15.935Z | 296.471° NW | 2026-06-22 17:08:15.935Z | 213.269° SW | 41.919° | 2026-06-22 17:11:15.935Z | 143.978° SSE |
| 4 mins | 2026-06-23 08:34:15.935Z | 158.182° S | 2026-06-23 08:35:15.935Z | 138.91° SSE | 18.954° | 2026-06-23 08:38:15.935Z | 84.118° E |
| 5 mins | 2026-06-23 10:12:15.935Z | 256.984° W | 2026-06-23 10:14:15.935Z | 315.709° NNW | 38.094° | 2026-06-23 10:17:15.935Z | 37.506° NE |
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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