STARLINK-5691, 55478
Orbit data source: Space-Track
STARLINK-5691, 55478 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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55478 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: 15 hours ago
TLE from 15 hours ago
0 STARLINK-5691
1 55478U 23015AF 26035.35487166 -.00000117 00000-0 64143-5 0 9999
2 55478 43.0028 134.6224 0001455 269.6623 90.4052 15.02534922165880Epoch: 2026-02-04T08:31Z
TLE epoch observation values (Epoch: 2026-02-04T08:31:00.911Z)
Latitude
-0.00006°
Longitude
-127.65411°
Altitude
558.868 km
Speed
7.584 km/s
True Right ascension
08h 58m 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
01:41:08
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
562.016 km
Perigee altitude
559.997 km
Semi-major axis
6,939.143 km
Eccentricity
0.00015
Inclination
43.0028°
RAAN
134.6224°
Arg. of periapsis
269.6623°
True anomaly
90.42187°
Mean anomaly
90.4052°
Eccentric anomaly
90.41354°
Mean motion
3.75478 °/min
Orbital period
95.88 mins
BSTAR
0.0000064143
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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-5691 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-02-05 08:38:01.865Z | 170.452° S | 2026-02-05 08:40:01.865Z | 136.873° SSE | 16.301° | 2026-02-05 08:42:01.865Z | 105.947° ESE |
| 7 mins | 2026-02-05 10:17:01.865Z | 236.84° WSW | 2026-02-05 10:20:01.865Z | 148.158° SSE | 42.947° | 2026-02-05 10:24:01.865Z | 74.293° E |
| 6 mins | 2026-02-05 11:58:01.865Z | 280.495° WNW | 2026-02-05 12:01:01.865Z | 14.647° NNE | 39.621° | 2026-02-05 12:04:01.865Z | 71.476° E |
| 6 mins | 2026-02-05 13:39:01.865Z | 292.333° WNW | 2026-02-05 13:42:01.865Z | 48.914° ENE | 42.314° | 2026-02-05 13:45:01.865Z | 95.492° ESE |
| 6 mins | 2026-02-05 15:20:01.865Z | 266.856° W | 2026-02-05 15:22:01.865Z | 218.714° SW | 32.81° | 2026-02-05 15:26:01.865Z | 140.544° SSE |
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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