STARLINK-5738, 55573
Orbit data source: Space-Track
STARLINK-5738, 55573 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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55573 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-5738
1 55573U 23020E 26171.21386190 .00002225 00000-0 90390-4 0 9995
2 55573 43.0030 149.5145 0001263 242.3003 117.7721 15.27565001184553Epoch: 2026-06-20T05:07Z
TLE epoch observation values (Epoch: 2026-06-20T05:07:57.668Z)
Latitude
0.00002°
Longitude
164.09254°
Altitude
483.274 km
Speed
7.625 km/s
True Right ascension
09h 58m 03s
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
23:19:35
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
485.905 km
Perigee altitude
484.172 km
Semi-major axis
6,863.176 km
Eccentricity
0.00013
Inclination
43.003°
RAAN
149.5145°
Arg. of periapsis
242.3003°
True anomaly
117.7849°
Mean anomaly
117.7721°
Eccentric anomaly
117.7785°
Mean motion
3.81729 °/min
Orbital period
94.31 mins
BSTAR
0.00009039
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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-5738 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 | 2026-06-23 00:49:16.385Z | 207.931° SW | 2026-06-23 00:51:16.385Z | 165.417° S | 28.827° | 2026-06-23 00:54:16.385Z | 90.074° ESE |
| 5 mins | 2026-06-23 02:28:16.385Z | 265.896° W | 2026-06-23 02:30:16.385Z | 315.701° NNW | 42.67° | 2026-06-23 02:33:16.385Z | 68.563° E |
| 6 mins | 2026-06-23 04:07:16.385Z | 292.351° WNW | 2026-06-23 04:09:16.385Z | 336.232° NNW | 37.132° | 2026-06-23 04:13:16.385Z | 82.015° E |
| 6 mins | 2026-06-23 05:46:16.385Z | 284.152° WNW | 2026-06-23 05:49:16.385Z | 144.79° SSE | 41.441° | 2026-06-23 05:52:16.385Z | 117.351° 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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