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: 4 hours ago
TLE from 4 hours ago
0 STARLINK-5685
1 55477U 23015AE 26305.83335647 .00050072 00000-0 18179-2 0 9996
2 55477 43.0010 61.9567 0001389 275.9560 152.5362 15.27559448 5848Epoch: 2026-11-01T20:00Z
TLE epoch observation values (Epoch: 2026-11-01T20:00:01.999Z)
Latitude
39.53519°
Longitude
142.49335°
Altitude
486.325 km
Speed
7.627 km/s
True Right ascension
08h 14m 28s
True Declination
39° 21' 35"
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
19:31:43
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.009 km
Perigee altitude
484.102 km
Semi-major axis
6,863.193 km
Eccentricity
0.00014
Inclination
43.001°
RAAN
61.9567°
Arg. of periapsis
275.956°
True anomaly
152.54354°
Mean anomaly
152.5362°
Eccentric anomaly
152.53987°
Mean motion
3.81728 °/min
Orbital period
94.31 mins
BSTAR
0.0018179
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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 | 2026-11-02 11:38:06.056Z | 224.228° SW | 2026-11-02 11:40:06.056Z | 153.798° SSE | 56.098° | 2026-11-02 11:43:06.056Z | 78.773° E |
| 5 mins | 2026-11-02 13:17:06.056Z | 281.667° WNW | 2026-11-02 13:19:06.056Z | 354.003° N | 56.538° | 2026-11-02 13:22:06.056Z | 68.986° E |
| 5 mins | 2026-11-02 14:56:06.056Z | 295.922° NW | 2026-11-02 14:58:06.056Z | 352.941° N | 58.39° | 2026-11-02 15:01:06.056Z | 87.449° E |
| 5 mins | 2026-11-02 16:35:06.056Z | 272.59° WNW | 2026-11-02 16:37:06.056Z | 214.801° SW | 48.402° | 2026-11-02 16:40:06.056Z | 135.402° 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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