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: 17 hours ago
TLE from 17 hours ago
0 STARLINK-5685
1 55477U 23015AE 25292.52890223 -.00000089 00000-0 84652-5 0 9998
2 55477 43.0048 0.5309 0001143 266.6430 93.4281 15.02535604149666Epoch: 2025-10-19T12:41Z
TLE epoch observation values (Epoch: 2025-10-19T12:41:37.152Z)
Latitude
-0.00007°
Longitude
141.88176°
Altitude
558.907 km
Speed
7.584 km/s
True Right ascension
00h 02m 07s
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
00:42:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
561.797 km
Perigee altitude
560.211 km
Semi-major axis
6,939.141 km
Eccentricity
0.00011
Inclination
43.0048°
RAAN
0.5309°
Arg. of periapsis
266.643°
True anomaly
93.44117°
Mean anomaly
93.4281°
Eccentric anomaly
93.43464°
Mean motion
3.75478 °/min
Orbital period
95.88 mins
BSTAR
0.0000084652
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-10-20 08:03:19.019Z | 221.11° SW | 2025-10-20 08:06:19.019Z | 151.383° SSE | 36.431° | 2025-10-20 08:10:19.019Z | 78.298° E |
| 6 mins | 2025-10-20 09:44:19.019Z | 271.508° WNW | 2025-10-20 09:47:19.019Z | 21.795° NNE | 41.183° | 2025-10-20 09:50:19.019Z | 69.99° E |
| 6 mins | 2025-10-20 11:25:19.019Z | 293.015° NW | 2025-10-20 11:28:19.019Z | 37.116° NE | 39.753° | 2025-10-20 11:31:19.019Z | 86.221° E |
| 6 mins | 2025-10-20 13:06:19.019Z | 276.998° WNW | 2025-10-20 13:08:19.019Z | 227.656° WSW | 40.153° | 2025-10-20 13:12:19.019Z | 126.836° SE |
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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