STARLINK-5685, 55477
Orbit data source: Space-Track
STARLINK-5685, 55477 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 02 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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55477 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: 13 hours ago
TLE from 13 hours ago
0 STARLINK-5685
1 55477U 23015AE 26244.88076810 .00000335 00000-0 21681-4 0 9998
2 55477 43.0023 46.1847 0001078 268.5241 91.5488 15.27575076197755Epoch: 2026-09-01T21:08Z
TLE epoch observation values (Epoch: 2026-09-01T21:08:18.363Z)
Latitude
0.00002°
Longitude
108.06692°
Altitude
482.86 km
Speed
7.626 km/s
True Right ascension
03h 04m 44s
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
01:38:10
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.748 km
Perigee altitude
484.269 km
Semi-major axis
6,863.146 km
Eccentricity
0.00011
Inclination
43.0023°
RAAN
46.1847°
Arg. of periapsis
268.5241°
True anomaly
91.56115°
Mean anomaly
91.5488°
Eccentric anomaly
91.55497°
Mean motion
3.81732 °/min
Orbital period
94.31 mins
BSTAR
0.000021681
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Other satellites on launch #15 in the year 2023 (2023-02-02 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-5685 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-09-02 14:38:23.485Z | 229.672° WSW | 2026-09-02 14:40:23.485Z | 179.82° S | 39.998° | 2026-09-02 14:43:23.485Z | 79.259° E |
| 5 mins | 2026-09-02 16:17:23.485Z | 280.185° WNW | 2026-09-02 16:19:23.485Z | 330.997° NNW | 38.883° | 2026-09-02 16:22:23.485Z | 68.089° E |
| 6 mins | 2026-09-02 17:56:23.485Z | 293.263° NW | 2026-09-02 17:59:23.485Z | 50.974° ENE | 39.437° | 2026-09-02 18:02:23.485Z | 92.206° ESE |
| 5 mins | 2026-09-02 19:35:23.485Z | 273.085° WNW | 2026-09-02 19:37:23.485Z | 228.587° WSW | 33.802° | 2026-09-02 19:40:23.485Z | 140.886° SSE |
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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