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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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, 4.4 m
Radar Cross Section
13.562 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 15 hours ago
TLE from 15 hours ago
0 STARLINK-5729
1 55596U 23020AD 25260.24605864 .00000445 00000-0 48015-4 0 9992
2 55596 43.0017 226.6783 0001394 266.4592 93.6091 15.02544973142838Epoch: 2025-09-17T05:54Z
TLE epoch observation values (Epoch: 2025-09-17T05:54:19.466Z)
Latitude
-0.00001°
Longitude
141.67241°
Altitude
558.891 km
Speed
7.584 km/s
True Right ascension
15h 06m 42s
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
14:07:18
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
561.943 km
Perigee altitude
560.008 km
Semi-major axis
6,939.113 km
Eccentricity
0.00014
Inclination
43.0017°
RAAN
226.6783°
Arg. of periapsis
266.4592°
True anomaly
93.62504°
Mean anomaly
93.6091°
Eccentric anomaly
93.61707°
Mean motion
3.7548 °/min
Orbital period
95.88 mins
BSTAR
0.000048015
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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 | 2025-09-18 01:16:33.000Z | 217.946° SW | 2025-09-18 01:18:33.000Z | 175.861° S | 35.476° | 2025-09-18 01:22:33.000Z | 80.24° E |
| 7 mins | 2025-09-18 02:56:33.000Z | 269.657° W | 2025-09-18 02:59:33.000Z | 337.309° NNW | 42.012° | 2025-09-18 03:03:33.000Z | 71.399° E |
| 7 mins | 2025-09-18 04:37:33.000Z | 290.415° WNW | 2025-09-18 04:40:33.000Z | 0.596° NNE | 40.883° | 2025-09-18 04:44:33.000Z | 88.08° E |
| 6 mins | 2025-09-18 06:18:33.000Z | 279.752° WNW | 2025-09-18 06:21:33.000Z | 191.493° SSW | 40.358° | 2025-09-18 06:24:33.000Z | 129.001° SE |
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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