STARLINK-4635, 53966
Orbit data source: Space-Track
STARLINK-4635, 53966 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Wed, 05 Oct 2022 UTC via an FALCON 9 launch vehicle from the Air Force Western Test Range (AFWTR). 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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53966 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-4635
1 53966U 22125C 26171.24650817 -.00000002 00000-0 17987-4 0 9990
2 53966 53.1613 123.6886 0001517 85.6987 274.4178 15.08834453204809Epoch: 2026-06-20T05:54Z
TLE epoch observation values (Epoch: 2026-06-20T05:54:58.305Z)
Latitude
-0.00002°
Longitude
126.48176°
Altitude
540.571 km
Speed
7.593 km/s
True Right ascension
08h 14m 45s
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
21:32:15
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
541.064 km
Perigee altitude
538.965 km
Semi-major axis
6,918.151 km
Eccentricity
0.00015
Inclination
53.1613°
RAAN
123.6886°
Arg. of periapsis
85.6987°
True anomaly
274.40047°
Mean anomaly
274.4178°
Eccentric anomaly
274.40913°
Mean motion
3.77188 °/min
Orbital period
95.44 mins
BSTAR
0.000017987
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Other satellites on launch #125 in the year 2022 (2022-10-05 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-4635 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 | 2026-06-22 21:39:13.933Z | 170.41° S | 2026-06-22 21:42:13.933Z | 119.11° SE | 18.003° | 2026-06-22 21:44:13.933Z | 86.744° E |
| 6 mins | 2026-06-22 23:18:13.933Z | 249.639° W | 2026-06-22 23:21:13.933Z | 351.373° N | 39.023° | 2026-06-22 23:24:13.933Z | 41.622° NE |
| 4 mins | 2026-06-23 00:59:13.933Z | 314.853° NW | 2026-06-23 01:01:13.933Z | 349.906° N | 16.048° | 2026-06-23 01:03:13.933Z | 21.158° NNE |
| 5 mins | 2026-06-23 04:20:13.933Z | 346.206° N | 2026-06-23 04:22:13.933Z | 30.099° NE | 23.39° | 2026-06-23 04:25:13.933Z | 81.642° E |
| 6 mins | 2026-06-23 05:59:13.933Z | 297.287° NW | 2026-06-23 06:01:13.933Z | 254.852° W | 39.417° | 2026-06-23 06:05:13.933Z | 145.661° SSE |
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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