STARLINK-4521, 53391
Orbit data source: Space-Track
STARLINK-4521, 53391 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Wed, 10 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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53391 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Operational spacecraft
Bus & Motor
STARLINK, Unknown motor
Mass
297 kg wet, ~275 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Unknown shape, 10.1 m
Radar Cross Section
Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 16 hours ago
TLE from 16 hours ago
0 STARLINK-4521
1 53391U 22097D 26092.16137569 .00000663 00000-0 59753-4 0 9996
2 53391 53.2207 18.7520 0001515 90.4167 269.6998 15.08835799202215Epoch: 2026-04-02T03:52Z
TLE epoch observation values (Epoch: 2026-04-02T03:52:22.859Z)
Latitude
-0.00009°
Longitude
130.14286°
Altitude
540.66 km
Speed
7.593 km/s
True Right ascension
01h 15m 00s
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
01:13:23
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
541.049 km
Perigee altitude
538.953 km
Semi-major axis
6,918.138 km
Eccentricity
0.00015
Inclination
53.2207°
RAAN
18.752°
Arg. of periapsis
90.4167°
True anomaly
269.68244°
Mean anomaly
269.6998°
Eccentric anomaly
269.69112°
Mean motion
3.77189 °/min
Orbital period
95.44 mins
BSTAR
0.000059753
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Other satellites on launch #97 in the year 2022 (2022-08-10 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-4521 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 | 2026-04-02 21:31:14.696Z | 217.791° SW | 2026-04-02 21:35:14.696Z | 118.361° SE | 41.935° | 2026-04-02 21:38:14.696Z | 57.056° ENE |
| 4 mins | 2026-04-02 23:13:14.696Z | 302.804° NW | 2026-04-02 23:14:14.696Z | 323.989° NNW | 22.081° | 2026-04-02 23:17:14.696Z | 22.895° NE |
| 4 mins | 2026-04-03 02:34:14.696Z | 348.706° N | 2026-04-03 02:36:14.696Z | 24.081° NE | 16.401° | 2026-04-03 02:38:14.696Z | 55.844° ENE |
| 6 mins | 2026-04-03 04:13:14.696Z | 320.534° NNW | 2026-04-03 04:16:14.696Z | 63.747° ENE | 40.447° | 2026-04-03 04:19:14.696Z | 116.526° SE |
| 4 mins | 2026-04-03 05:53:14.696Z | 262.078° W | 2026-04-03 05:55:14.696Z | 225.979° WSW | 16.904° | 2026-04-03 05:57:14.696Z | 194.163° SSW |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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