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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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: 14 hours ago
TLE from 14 hours ago
0 STARLINK-5691
1 55478U 23015AF 26244.84029038 .00000036 00000-0 10843-4 0 9991
2 55478 43.0052 43.3186 0001759 269.2458 90.8192 15.27571357197782Epoch: 2026-09-01T20:10Z
TLE epoch observation values (Epoch: 2026-09-01T20:10:01.088Z)
Latitude
-0.00005°
Longitude
119.81262°
Altitude
482.868 km
Speed
7.626 km/s
True Right ascension
02h 53m 16s
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
01:38:34
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
486.226 km
Perigee altitude
483.812 km
Semi-major axis
6,863.156 km
Eccentricity
0.00018
Inclination
43.0052°
RAAN
43.3186°
Arg. of periapsis
269.2458°
True anomaly
90.83935°
Mean anomaly
90.8192°
Eccentric anomaly
90.82928°
Mean motion
3.81731 °/min
Orbital period
94.31 mins
BSTAR
0.000010843
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-09-02 13:37:47.490Z | 201.355° SSW | 2026-09-02 13:39:47.490Z | 161.448° S | 25.243° | 2026-09-02 13:42:47.490Z | 93.224° ESE |
| 5 mins | 2026-09-02 15:16:47.490Z | 260.16° W | 2026-09-02 15:18:47.490Z | 308.001° NW | 43.958° | 2026-09-02 15:21:47.490Z | 69.707° E |
| 6 mins | 2026-09-02 16:55:47.490Z | 291.495° WNW | 2026-09-02 16:57:47.490Z | 339.243° N | 37.173° | 2026-09-02 17:01:47.490Z | 79.644° E |
| 6 mins | 2026-09-02 18:34:47.490Z | 286.92° WNW | 2026-09-02 18:36:47.490Z | 277.404° WNW | 42.405° | 2026-09-02 18:40:47.490Z | 111.932° ESE |
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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