STARLINK-4477, 53546
Orbit data source: Space-Track
STARLINK-4477, 53546 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 19 Aug 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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53546 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
300 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-4477
1 53546U 22101V 26171.41668980 .00046263 00000-0 25740-2 0 9999
2 53546 53.1590 312.3093 0000203 12.8249 241.3206 15.13229192 5828Epoch: 2026-06-20T10:00Z
TLE epoch observation values (Epoch: 2026-06-20T10:00:01.998Z)
Latitude
-50.50736°
Longitude
138.3747°
Altitude
543.887 km
Speed
7.59 km/s
True Right ascension
13h 08m 03s
True Declination
-50° 19' 60"
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
21:27:53
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
526.755 km
Perigee altitude
526.474 km
Semi-major axis
6,904.752 km
Eccentricity
0.00002
Inclination
53.159°
RAAN
312.3093°
Arg. of periapsis
12.8249°
True anomaly
241.31856°
Mean anomaly
241.3206°
Eccentric anomaly
241.31958°
Mean motion
3.78287 °/min
Orbital period
95.17 mins
BSTAR
0.002574
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Other satellites on launch #101 in the year 2022 (2022-08-19 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-4477 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-06-22 11:46:53.283Z | 233.148° WSW | 2026-06-22 11:50:53.283Z | 24.33° NE | 42.991° | 2026-06-22 11:53:53.283Z | 47.722° ENE |
| 4 mins | 2026-06-22 13:28:53.283Z | 316.918° NNW | 2026-06-22 13:29:53.283Z | 336.57° NNW | 18.106° | 2026-06-22 13:32:53.283Z | 26.037° NE |
| 4 mins | 2026-06-22 16:48:53.283Z | 348.376° N | 2026-06-22 16:50:53.283Z | 27.915° NE | 19.261° | 2026-06-22 16:52:53.283Z | 63.516° ENE |
| 6 mins | 2026-06-22 18:27:53.283Z | 309.053° NW | 2026-06-22 18:29:53.283Z | 296.235° NW | 44.539° | 2026-06-22 18:33:53.283Z | 132.213° 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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