STARLINK-5729, 55596
Orbit data source: Space-Track
STARLINK-5729, 55596 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sun, 12 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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55596 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: 2 days ago
TLE from 2 days ago
0 STARLINK-5729
1 55596U 23020AD 26171.34254017 .00000866 00000-0 40975-4 0 9999
2 55596 43.0024 145.3491 0000874 275.0155 85.0597 15.27580142184615Epoch: 2026-06-20T08:13Z
TLE epoch observation values (Epoch: 2026-06-20T08:13:15.470Z)
Latitude
-0.00002°
Longitude
113.47608°
Altitude
482.773 km
Speed
7.626 km/s
True Right ascension
09h 41m 23s
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
23:19:21
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.593 km
Perigee altitude
484.394 km
Semi-major axis
6,863.13 km
Eccentricity
0.00009
Inclination
43.0024°
RAAN
145.3491°
Arg. of periapsis
275.0155°
True anomaly
85.06968°
Mean anomaly
85.0597°
Eccentric anomaly
85.06469°
Mean motion
3.81733 °/min
Orbital period
94.31 mins
BSTAR
0.000040975
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Other satellites on launch #20 in the year 2023 (2023-02-12 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-5729 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 | 2026-06-23 00:46:03.119Z | 219.653° SW | 2026-06-23 00:49:03.119Z | 155.329° SSE | 33.078° | 2026-06-23 00:52:03.119Z | 84.471° E |
| 5 mins | 2026-06-23 02:26:03.119Z | 272.736° WNW | 2026-06-23 02:28:03.119Z | 352.799° N | 42.055° | 2026-06-23 02:31:03.119Z | 69.051° E |
| 5 mins | 2026-06-23 04:05:03.119Z | 295.327° NW | 2026-06-23 04:07:03.119Z | 353.646° N | 38.954° | 2026-06-23 04:10:03.119Z | 81.574° E |
| 5 mins | 2026-06-23 05:44:03.119Z | 279.652° WNW | 2026-06-23 05:46:03.119Z | 224.189° SW | 41.573° | 2026-06-23 05:49:03.119Z | 124.613° 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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