STARLINK-5753, 55581
Orbit data source: Space-Track
STARLINK-5753, 55581 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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55581 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: 21 hours ago
TLE from 21 hours ago
0 STARLINK-5753
1 55581U 23020N 26263.55185911 -.00000353 00000-0 -32924-5 0 9993
2 55581 43.0043 351.6137 0001120 272.9542 87.1181 15.27576493198633Epoch: 2026-09-20T13:14Z
TLE epoch observation values (Epoch: 2026-09-20T13:14:40.627Z)
Latitude
-0.00004°
Longitude
153.49997°
Altitude
482.797 km
Speed
7.626 km/s
True Right ascension
23h 26m 27s
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
03:13:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.773 km
Perigee altitude
484.235 km
Semi-major axis
6,863.141 km
Eccentricity
0.00011
Inclination
43.0043°
RAAN
351.6137°
Arg. of periapsis
272.9542°
True anomaly
87.13092°
Mean anomaly
87.1181°
Eccentric anomaly
87.12451°
Mean motion
3.81732 °/min
Orbital period
94.31 mins
BSTAR
-0.0000032924
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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-5753 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 11:31:19.510Z | 276.855° WNW | 2026-09-21 11:35:19.510Z | 22.179° NNE | 49.672° | 2026-09-21 11:38:19.510Z | 71.973° E |
| 5 mins | 2026-09-21 13:12:19.510Z | 297.757° NW | 2026-09-21 13:14:19.510Z | 35.782° NE | 64.23° | 2026-09-21 13:17:19.510Z | 94.646° ESE |
| 5 mins | 2026-09-21 14:51:19.510Z | 260.296° W | 2026-09-21 14:53:19.510Z | 194.374° SSW | 37.418° | 2026-09-21 14:56:19.510Z | 141.017° SSE |
| 5 mins | 2026-09-22 09:26:19.510Z | 232.856° WSW | 2026-09-22 09:28:19.510Z | 130.733° SE | 65.938° | 2026-09-22 09:31:19.510Z | 75.267° 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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