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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Edit Public Description
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: 13 hours ago
TLE from 13 hours ago
0 STARLINK-5221
1 54091U 22136AS 25304.01703342 .00000698 00000-0 61906-4 0 9996
2 54091 53.2172 195.8434 0001344 85.4912 274.6233 15.08847360167414Epoch: 2025-10-31T00:24Z
TLE epoch observation values (Epoch: 2025-10-31T00:24:31.687Z)
Latitude
-0.00008°
Longitude
150.1438°
Altitude
540.544 km
Speed
7.593 km/s
True Right ascension
13h 03m 22s
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
08:35:00
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.896 km
Perigee altitude
539.036 km
Semi-major axis
6,918.103 km
Eccentricity
0.00013
Inclination
53.2172°
RAAN
195.8434°
Arg. of periapsis
85.4912°
True anomaly
274.60795°
Mean anomaly
274.6233°
Eccentric anomaly
274.61562°
Mean motion
3.77192 °/min
Orbital period
95.44 mins
BSTAR
0.000061906
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-10-31 19:41:09.546Z | 229.937° WSW | 2025-10-31 19:43:09.546Z | 248.353° W | 44.926° | 2025-10-31 19:47:09.546Z | 49.758° ENE |
| 4 mins | 2025-10-31 21:21:09.546Z | 302.748° NW | 2025-10-31 21:23:09.546Z | 340.562° N | 19.261° | 2025-10-31 21:25:09.546Z | 16.722° NNE |
| 4 mins | 2025-11-01 00:43:09.546Z | 358.536° N | 2025-11-01 00:44:09.546Z | 18.356° NNE | 18.871° | 2025-11-01 00:47:09.546Z | 68.316° E |
| 7 mins | 2025-11-01 02:21:09.546Z | 311.664° NW | 2025-11-01 02:24:09.546Z | 55.191° ENE | 44.881° | 2025-11-01 02:28:09.546Z | 129.219° SE |
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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