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: 20 hours ago
TLE from 20 hours ago
0 STARLINK-5691
1 55478U 23015AF 25352.49081940 -.00000211 00000-0 -53494-6 0 9999
2 55478 43.0020 34.7004 0000901 241.8357 118.2394 15.02536745158682Epoch: 2025-12-18T11:46Z
TLE epoch observation values (Epoch: 2025-12-18T11:46:46.796Z)
Latitude
-0.00003°
Longitude
130.65981°
Altitude
559.151 km
Speed
7.584 km/s
True Right ascension
02h 18m 48s
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
06:16:07
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
561.626 km
Perigee altitude
560.376 km
Semi-major axis
6,939.138 km
Eccentricity
0.00009
Inclination
43.002°
RAAN
34.7004°
Arg. of periapsis
241.8357°
True anomaly
118.2485°
Mean anomaly
118.2394°
Eccentric anomaly
118.24395°
Mean motion
3.75478 °/min
Orbital period
95.88 mins
BSTAR
-5.3494e-7
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-12-19 08:50:59.460Z | 280.789° WNW | 2025-12-19 08:54:59.460Z | 27.139° NE | 38.104° | 2025-12-19 08:57:59.460Z | 74.527° E |
| 6 mins | 2025-12-19 10:32:59.460Z | 291.191° WNW | 2025-12-19 10:34:59.460Z | 315.199° NNW | 42.995° | 2025-12-19 10:38:59.460Z | 102.675° ESE |
| 5 mins | 2025-12-19 12:13:59.460Z | 257.284° W | 2025-12-19 12:15:59.460Z | 209.2° SW | 27.712° | 2025-12-19 12:18:59.460Z | 153.751° SSE |
| 5 mins | 2025-12-20 05:27:59.460Z | 195.751° SSW | 2025-12-20 05:29:59.460Z | 153.911° SSE | 26.792° | 2025-12-20 05:32:59.460Z | 92.769° ESE |
| 6 mins | 2025-12-20 07:07:59.460Z | 257.447° W | 2025-12-20 07:10:59.460Z | 41.51° NE | 43.785° | 2025-12-20 07:13:59.460Z | 70.7° 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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