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: 23 hours ago
TLE from 23 hours ago
0 STARLINK-4608
1 53621U 22104AK 25347.16696918 .00001267 00000-0 97690-4 0 9994
2 53621 53.2160 262.4895 0001691 80.4510 279.6674 15.08838590182578Epoch: 2025-12-13T04:00Z
TLE epoch observation values (Epoch: 2025-12-13T04:00:26.137Z)
Latitude
0.00006°
Longitude
120.28251°
Altitude
540.449 km
Speed
7.593 km/s
True Right ascension
17h 29m 57s
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
01:32:05
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
541.163 km
Perigee altitude
538.823 km
Semi-major axis
6,918.13 km
Eccentricity
0.00017
Inclination
53.216°
RAAN
262.4895°
Arg. of periapsis
80.451°
True anomaly
279.6483°
Mean anomaly
279.6674°
Eccentric anomaly
279.65785°
Mean motion
3.7719 °/min
Orbital period
95.44 mins
BSTAR
0.00009769
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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 | 2025-12-14 04:22:24.022Z | 301.204° NW | 2025-12-14 04:25:24.022Z | 235.765° WSW | 40.82° | 2025-12-14 04:29:24.022Z | 144.491° SSE |
| 4 mins | 2025-12-14 19:55:24.022Z | 162.55° S | 2025-12-14 19:56:24.022Z | 141.595° SSE | 22.281° | 2025-12-14 19:59:24.022Z | 81.859° E |
| 6 mins | 2025-12-14 21:33:24.022Z | 258.956° W | 2025-12-14 21:36:24.022Z | 343.415° N | 34.929° | 2025-12-14 21:39:24.022Z | 37.705° NE |
| 5 mins | 2025-12-15 02:35:24.022Z | 343.355° N | 2025-12-15 02:37:24.022Z | 30.335° NE | 26.318° | 2025-12-15 02:40:24.022Z | 86.831° E |
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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