STARLINK-3550, 52373
Orbit data source: Space-Track
STARLINK-3550, 52373 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 29 Apr 2022 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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52373 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
297 kg wet, ~275 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Box + 1 Pan, 10.1 m
Radar Cross Section
11.087 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 19 hours ago
TLE from 19 hours ago
0 STARLINK-3550
1 52373U 22045AU 25348.89519766 .00000636 00000-0 58040-4 0 9992
2 52373 53.2168 209.7793 0001526 87.8502 272.2665 15.08837805203121Epoch: 2025-12-14T21:29Z
TLE epoch observation values (Epoch: 2025-12-14T21:29:05.077Z)
Latitude
-0.00003°
Longitude
163.70657°
Altitude
540.606 km
Speed
7.593 km/s
True Right ascension
13h 59m 07s
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
15:08:56
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
541.051 km
Perigee altitude
538.939 km
Semi-major axis
6,918.132 km
Eccentricity
0.00015
Inclination
53.2168°
RAAN
209.7793°
Arg. of periapsis
87.8502°
True anomaly
272.24903°
Mean anomaly
272.2665°
Eccentric anomaly
272.25776°
Mean motion
3.7719 °/min
Orbital period
95.44 mins
BSTAR
0.00005804
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Other satellites on launch #45 in the year 2022 (2022-04-29 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-3550 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 | 2025-12-15 16:43:04.750Z | 184.255° SSW | 2025-12-15 16:46:04.750Z | 122.258° SE | 25.59° | 2025-12-15 16:49:04.750Z | 71.804° E |
| 5 mins | 2025-12-15 18:23:04.750Z | 272.315° WNW | 2025-12-15 18:25:04.750Z | 330.224° NNW | 32.947° | 2025-12-15 18:28:04.750Z | 33.912° NE |
| 5 mins | 2025-12-15 23:24:04.750Z | 337.52° N | 2025-12-15 23:26:04.750Z | 21.813° NNE | 28.239° | 2025-12-15 23:29:04.750Z | 88.066° E |
| 6 mins | 2025-12-16 01:03:04.750Z | 288.285° WNW | 2025-12-16 01:06:04.750Z | 212.679° SW | 31.5° | 2025-12-16 01:09:04.750Z | 160.478° S |
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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