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: 2 days ago
TLE from 2 days ago
0 STARLINK-5685
1 55477U 23015AE 26005.17504608 .00001630 00000-0 13579-3 0 9991
2 55477 43.0055 298.6233 0000996 258.0606 102.0125 15.02521389161343Epoch: 2026-01-05T04:12Z
TLE epoch observation values (Epoch: 2026-01-05T04:12:03.981Z)
Latitude
0.00001°
Longitude
130.83074°
Altitude
559.047 km
Speed
7.584 km/s
True Right ascension
19h 54m 29s
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
22:06:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
561.739 km
Perigee altitude
560.356 km
Semi-major axis
6,939.185 km
Eccentricity
0.0001
Inclination
43.0055°
RAAN
298.6233°
Arg. of periapsis
258.0606°
True anomaly
102.02366°
Mean anomaly
102.0125°
Eccentric anomaly
102.01808°
Mean motion
3.75475 °/min
Orbital period
95.88 mins
BSTAR
0.00013579
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Other satellites on launch #15 in the year 2023 (2023-02-02 UTC)
Did you know?
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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-01-06 23:32:29.135Z | 256.064° W | 2026-01-06 23:35:29.135Z | 276.484° WNW | 43.013° | 2026-01-06 23:39:29.135Z | 70.985° E |
| 6 mins | 2026-01-07 01:14:29.135Z | 291.421° WNW | 2026-01-07 01:16:29.135Z | 338.723° N | 38.619° | 2026-01-07 01:20:29.135Z | 78.938° E |
| 6 mins | 2026-01-07 02:55:29.135Z | 286.788° WNW | 2026-01-07 02:57:29.135Z | 266.773° W | 44.46° | 2026-01-07 03:01:29.135Z | 111.709° ESE |
| 4 mins | 2026-01-07 04:36:29.135Z | 247.256° WSW | 2026-01-07 04:38:29.135Z | 205.498° SW | 21.315° | 2026-01-07 04:40:29.135Z | 171.244° S |
| 6 mins | 2026-01-07 21:49:29.135Z | 214.863° SW | 2026-01-07 21:52:29.135Z | 147.4° SSE | 33.358° | 2026-01-07 21:55:29.135Z | 85.13° E |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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