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: 17 hours ago
TLE from 17 hours ago
0 STARLINK-5221
1 54091U 22136AS 26270.33335648 .00038055 00000-0 17088-2 0 9992
2 54091 53.1592 147.3348 0002413 81.6070 71.8688 15.20830903 5811Epoch: 2026-09-27T08:00Z
TLE epoch observation values (Epoch: 2026-09-27T08:00:01.999Z)
Latitude
20.96788°
Longitude
-175.39259°
Altitude
503.366 km
Speed
7.616 km/s
True Right ascension
20h 42m 58s
True Declination
20° 50' 56"
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
18:17:13
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
505.249 km
Perigee altitude
501.928 km
Semi-major axis
6,881.726 km
Eccentricity
0.00024
Inclination
53.1592°
RAAN
147.3348°
Arg. of periapsis
81.607°
True anomaly
71.89508°
Mean anomaly
71.8688°
Eccentric anomaly
71.88194°
Mean motion
3.80187 °/min
Orbital period
94.69 mins
BSTAR
0.0017088
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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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-09-28 01:09:24.905Z | 316.681° NNW | 2026-09-28 01:13:24.905Z | 60.083° ENE | 56.371° | 2026-09-28 01:16:24.905Z | 115.703° SE |
| 6 mins | 2026-09-28 18:12:24.905Z | 217.606° SW | 2026-09-28 18:15:24.905Z | 94.048° ESE | 62.692° | 2026-09-28 18:18:24.905Z | 54.885° ENE |
| 4 mins | 2026-09-28 19:52:24.905Z | 303.992° NW | 2026-09-28 19:53:24.905Z | 324.882° NNW | 21.812° | 2026-09-28 19:56:24.905Z | 22.95° 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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