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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Edit Public Description
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: 9 hours ago
TLE from 9 hours ago
0 STARLINK-5685
1 55477U 23015AE 25303.29831789 .00000689 00000-0 66097-4 0 9994
2 55477 43.0098 302.0167 0002109 273.5421 86.5180 15.02524774151281Epoch: 2025-10-30T07:09Z
TLE epoch observation values (Epoch: 2025-10-30T07:09:34.665Z)
Latitude
-0.00004°
Longitude
155.76311°
Altitude
558.805 km
Speed
7.584 km/s
True Right ascension
20h 08m 03s
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
12:02:42
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
562.5 km
Perigee altitude
559.573 km
Semi-major axis
6,939.173 km
Eccentricity
0.00021
Inclination
43.0098°
RAAN
302.0167°
Arg. of periapsis
273.5421°
True anomaly
86.54212°
Mean anomaly
86.518°
Eccentric anomaly
86.53006°
Mean motion
3.75475 °/min
Orbital period
95.88 mins
BSTAR
0.000066097
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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 | 2025-10-31 02:29:12.789Z | 186.866° SSW | 2025-10-31 02:32:12.789Z | 134.041° SE | 19.648° | 2025-10-31 02:34:12.789Z | 101.357° ESE |
| 7 mins | 2025-10-31 04:09:12.789Z | 244.511° WSW | 2025-10-31 04:12:12.789Z | 120.224° SE | 44.359° | 2025-10-31 04:16:12.789Z | 72.806° E |
| 6 mins | 2025-10-31 05:50:12.789Z | 284.489° WNW | 2025-10-31 05:53:12.789Z | 18.264° NNE | 38.908° | 2025-10-31 05:56:12.789Z | 73.374° E |
| 6 mins | 2025-10-31 07:31:12.789Z | 291.242° WNW | 2025-10-31 07:34:12.789Z | 69.796° E | 43.017° | 2025-10-31 07:37:12.789Z | 101.18° ESE |
| 5 mins | 2025-10-31 09:12:12.789Z | 260.796° W | 2025-10-31 09:14:12.789Z | 214.463° SW | 28.682° | 2025-10-31 09:17:12.789Z | 153.722° 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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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