STARLINK-5366, 55499
Orbit data source: Space-Track
STARLINK-5366, 55499 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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55499 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-5366
1 55499U 23015BC 26305.83335647 .00065199 00000-0 23603-2 0 9994
2 55499 43.0008 80.1354 0001150 275.5942 207.7235 15.27547927 5797Epoch: 2026-11-01T20:00Z
TLE epoch observation values (Epoch: 2026-11-01T20:00:01.999Z)
Latitude
34.87955°
Longitude
-129.01174°
Altitude
485.278 km
Speed
7.627 km/s
True Right ascension
14h 08m 27s
True Declination
34° 42' 43"
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
19:33:11
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.879 km
Perigee altitude
484.301 km
Semi-major axis
6,863.227 km
Eccentricity
0.00012
Inclination
43.0008°
RAAN
80.1354°
Arg. of periapsis
275.5942°
True anomaly
207.71737°
Mean anomaly
207.7235°
Eccentric anomaly
207.72044°
Mean motion
3.81725 °/min
Orbital period
94.31 mins
BSTAR
0.0023603
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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-5366 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 | 2026-11-02 12:58:33.821Z | 228.58° WSW | 2026-11-02 13:00:33.821Z | 131.797° SE | 61.321° | 2026-11-02 13:03:33.821Z | 76.145° E |
| 5 mins | 2026-11-02 14:37:33.821Z | 286.943° WNW | 2026-11-02 14:39:33.821Z | 9.436° NNE | 53.325° | 2026-11-02 14:42:33.821Z | 70.475° E |
| 5 mins | 2026-11-02 16:16:33.821Z | 296.927° NW | 2026-11-02 16:18:33.821Z | 12.06° NNE | 62.941° | 2026-11-02 16:21:33.821Z | 91.463° ESE |
| 5 mins | 2026-11-02 17:55:33.821Z | 266.431° W | 2026-11-02 17:57:33.821Z | 202.407° SSW | 42.485° | 2026-11-02 18:00:33.821Z | 138.791° SSE |
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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