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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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: 22 hours ago
TLE from 22 hours ago
0 STARLINK-4608
1 53621U 22104AK 26083.64676050 .00001838 00000-0 13355-3 0 9999
2 53621 53.2168 166.9310 0001357 92.0376 268.0772 15.08834787197890Epoch: 2026-03-24T15:31Z
TLE epoch observation values (Epoch: 2026-03-24T15:31:20.107Z)
Latitude
0.00003°
Longitude
111.97582°
Altitude
540.688 km
Speed
7.593 km/s
True Right ascension
11h 07m 43s
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
18:16:25
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.943 km
Perigee altitude
539.066 km
Semi-major axis
6,918.141 km
Eccentricity
0.00014
Inclination
53.2168°
RAAN
166.931°
Arg. of periapsis
92.0376°
True anomaly
268.06166°
Mean anomaly
268.0772°
Eccentric anomaly
268.06943°
Mean motion
3.77189 °/min
Orbital period
95.44 mins
BSTAR
0.00013355
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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 | 2026-03-25 14:14:51.785Z | 323.082° NNW | 2026-03-25 14:18:51.785Z | 50.148° ENE | 31.911° | 2026-03-25 14:21:51.785Z | 101.394° ESE |
| 5 mins | 2026-03-25 15:55:51.785Z | 271.607° WNW | 2026-03-25 15:57:51.785Z | 223.162° SW | 26.004° | 2026-03-25 16:00:51.785Z | 170.721° S |
| 6 mins | 2026-03-26 07:26:51.785Z | 199.301° SSW | 2026-03-26 07:28:51.785Z | 140.919° SSE | 37.493° | 2026-03-26 07:32:51.785Z | 59.366° ENE |
| 5 mins | 2026-03-26 09:06:51.785Z | 294.057° NW | 2026-03-26 09:08:51.785Z | 343.105° N | 24.812° | 2026-03-26 09:11:51.785Z | 31.942° NE |
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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