STARLINK-5221, 54091
Orbit data source: Space-Track
STARLINK-5221, 54091 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 20 Oct 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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54091 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
305 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-5221
1 54091U 22136AS 26171.45344287 .00000606 00000-0 56184-4 0 9997
2 54091 53.1595 232.2766 0001191 87.6113 272.5015 15.08835767202506Epoch: 2026-06-20T10:52Z
TLE epoch observation values (Epoch: 2026-06-20T10:52:57.463Z)
Latitude
-0.00003°
Longitude
160.3693°
Altitude
540.612 km
Speed
7.593 km/s
True Right ascension
15h 29m 06s
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
21:36:04
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.834 km
Perigee altitude
539.187 km
Semi-major axis
6,918.148 km
Eccentricity
0.00012
Inclination
53.1595°
RAAN
232.2766°
Arg. of periapsis
87.6113°
True anomaly
272.48787°
Mean anomaly
272.5015°
Eccentric anomaly
272.49468°
Mean motion
3.77188 °/min
Orbital period
95.44 mins
BSTAR
0.000056184
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Other satellites on launch #136 in the year 2022 (2022-10-20 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-5221 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-06-22 11:00:02.138Z | 342.7° N | 2026-06-22 11:02:02.138Z | 15.158° NNE | 15.392° | 2026-06-22 11:04:02.138Z | 47.655° ENE |
| 6 mins | 2026-06-22 12:40:02.138Z | 329.96° NNW | 2026-06-22 12:42:02.138Z | 28.251° NE | 37.342° | 2026-06-22 12:46:02.138Z | 111.31° ESE |
| 4 mins | 2026-06-22 14:20:02.138Z | 257.229° W | 2026-06-22 14:21:02.138Z | 236.119° WSW | 20.885° | 2026-06-22 14:24:02.138Z | 182.854° SSW |
| 6 mins | 2026-06-23 05:50:02.138Z | 214.756° SW | 2026-06-23 05:53:02.138Z | 98.971° ESE | 41.071° | 2026-06-23 05:56:02.138Z | 56.219° ENE |
| 5 mins | 2026-06-23 07:30:02.138Z | 291.02° WNW | 2026-06-23 07:32:02.138Z | 329.577° NNW | 22.285° | 2026-06-23 07:35:02.138Z | 25.462° NE |
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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