STARLINK-4608, 53621
Orbit data source: Space-Track
STARLINK-4608, 53621 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sun, 28 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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53621 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
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-4608
1 53621U 22104AK 26035.68895018 .00000474 00000-0 47880-4 0 9993
2 53621 53.2186 22.2204 0001456 91.4228 268.6931 15.08833830190653Epoch: 2026-02-04T16:32Z
TLE epoch observation values (Epoch: 2026-02-04T16:32:05.295Z)
Latitude
-0.00002°
Longitude
-0.65361°
Altitude
540.683 km
Speed
7.593 km/s
True Right ascension
01h 28m 52s
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
10:38:20
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
541.014 km
Perigee altitude
539 km
Semi-major axis
6,918.144 km
Eccentricity
0.00015
Inclination
53.2186°
RAAN
22.2204°
Arg. of periapsis
91.4228°
True anomaly
268.67642°
Mean anomaly
268.6931°
Eccentric anomaly
268.68476°
Mean motion
3.77189 °/min
Orbital period
95.44 mins
BSTAR
0.00004788
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Other satellites on launch #104 in the year 2022 (2022-08-28 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-4608 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 | 2026-02-06 08:47:50.264Z | 298.415° NW | 2026-02-06 08:51:50.264Z | 210.188° SW | 35.208° | 2026-02-06 08:54:50.264Z | 155.111° SSE |
| 5 mins | 2026-02-07 00:20:50.264Z | 179.071° S | 2026-02-07 00:22:50.264Z | 131.025° SE | 27.847° | 2026-02-07 00:25:50.264Z | 72.358° E |
| 6 mins | 2026-02-07 01:59:50.264Z | 271.314° WNW | 2026-02-07 02:01:50.264Z | 318.263° NNW | 31.11° | 2026-02-07 02:05:50.264Z | 37.188° NE |
| 6 mins | 2026-02-07 07:00:50.264Z | 332.562° NNW | 2026-02-07 07:03:50.264Z | 44.98° NE | 29.307° | 2026-02-07 07:06:50.264Z | 96.217° ESE |
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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