STARLINK-4545, 53421
Orbit data source: Space-Track
STARLINK-4545, 53421 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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53421 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
297 kg wet, ~275 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: 20 hours ago
TLE from 20 hours ago
0 STARLINK-4545
1 53421U 22097AK 26144.12762743 .00000345 00000-0 39748-4 0 9991
2 53421 53.2156 135.4627 0001502 90.4776 269.6388 15.08849699210013Epoch: 2026-05-24T03:03Z
TLE epoch observation values (Epoch: 2026-05-24T03:03:47.009Z)
Latitude
-0.00007°
Longitude
-152.21745°
Altitude
540.618 km
Speed
7.593 km/s
True Right ascension
09h 01m 51s
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
08:29:13
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.998 km
Perigee altitude
538.92 km
Semi-major axis
6,918.096 km
Eccentricity
0.00015
Inclination
53.2156°
RAAN
135.4627°
Arg. of periapsis
90.4776°
True anomaly
269.62159°
Mean anomaly
269.6388°
Eccentric anomaly
269.63019°
Mean motion
3.77193 °/min
Orbital period
95.44 mins
BSTAR
0.000039748
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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-4545 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 | 2026-05-25 01:28:25.593Z | 202.234° SSW | 2026-05-25 01:31:25.593Z | 151.499° SSE | 32.81° | 2026-05-25 01:35:25.593Z | 63.759° ENE |
| 5 mins | 2026-05-25 03:09:25.593Z | 285.389° WNW | 2026-05-25 03:11:25.593Z | 335.611° NNW | 27.384° | 2026-05-25 03:14:25.593Z | 31.141° NE |
| 6 mins | 2026-05-25 08:10:25.593Z | 333.553° NNW | 2026-05-25 08:12:25.593Z | 26.44° NE | 34.042° | 2026-05-25 08:16:25.593Z | 105.976° ESE |
| 5 mins | 2026-05-25 09:49:25.593Z | 277.636° WNW | 2026-05-25 09:51:25.593Z | 238.983° WSW | 24.137° | 2026-05-25 09:54:25.593Z | 178.545° S |
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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