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: 4 hours ago
TLE from 4 hours ago
0 STARLINK-5691
1 55478U 23015AF 26091.83335647 .00079747 00000-0 39907-2 0 9991
2 55478 43.0000 186.8773 0001060 264.3995 310.3213 15.16466407 5797Epoch: 2026-04-01T20:00Z
TLE epoch observation values (Epoch: 2026-04-01T20:00:01.999Z)
Latitude
-23.01533°
Longitude
-96.38345°
Altitude
521.507 km
Speed
7.603 km/s
True Right ascension
02h 15m 15s
True Declination
-22° 53' 15"
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
05:22:49
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
519.197 km
Perigee altitude
517.735 km
Semi-major axis
6,896.603 km
Eccentricity
0.00011
Inclination
43°
RAAN
186.8773°
Arg. of periapsis
264.3995°
True anomaly
310.31204°
Mean anomaly
310.3213°
Eccentric anomaly
310.31667°
Mean motion
3.78957 °/min
Orbital period
95 mins
BSTAR
0.0039907
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2026-04-02 09:28:55.411Z | 213.087° SW | 2026-04-02 09:31:55.411Z | 155.684° SSE | 29.844° | 2026-04-02 09:34:55.411Z | 88.554° E |
| 6 mins | 2026-04-02 11:08:55.411Z | 263.435° W | 2026-04-02 11:11:55.411Z | 21.292° NNE | 42.891° | 2026-04-02 11:14:55.411Z | 69.929° E |
| 6 mins | 2026-04-02 12:48:55.411Z | 290.687° WNW | 2026-04-02 12:51:55.411Z | 24.749° NE | 38.465° | 2026-04-02 12:54:55.411Z | 80.756° E |
| 6 mins | 2026-04-02 14:28:55.411Z | 284.091° WNW | 2026-04-02 14:31:55.411Z | 145.536° SSE | 41.889° | 2026-04-02 14:34:55.411Z | 117.448° SE |
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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