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: 9 hours ago
TLE from 9 hours ago
0 STARLINK-5221
1 54091U 22136AS 26090.77304069 -.00000043 00000-0 15399-4 0 9995
2 54091 53.2170 234.5817 0001164 88.6829 271.4297 15.08839817190329Epoch: 2026-03-31T18:33Z
TLE epoch observation values (Epoch: 2026-03-31T18:33:10.715Z)
Latitude
0.00001°
Longitude
127.14164°
Altitude
540.621 km
Speed
7.593 km/s
True Right ascension
15h 38m 19s
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
09:22:14
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.794 km
Perigee altitude
539.184 km
Semi-major axis
6,918.126 km
Eccentricity
0.00012
Inclination
53.217°
RAAN
234.5817°
Arg. of periapsis
88.6829°
True anomaly
271.41637°
Mean anomaly
271.4297°
Eccentric anomaly
271.42303°
Mean motion
3.7719 °/min
Orbital period
95.44 mins
BSTAR
0.000015399
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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 | 2026-04-01 12:13:37.051Z | 225.331° WSW | 2026-04-01 12:16:37.051Z | 73.781° E | 44.018° | 2026-04-01 12:19:37.051Z | 51.586° ENE |
| 4 mins | 2026-04-01 13:54:37.051Z | 307.578° NW | 2026-04-01 13:55:37.051Z | 327.094° NNW | 19.78° | 2026-04-01 13:58:37.051Z | 22.157° NNE |
| 4 mins | 2026-04-01 17:15:37.051Z | 348.839° N | 2026-04-01 17:17:37.051Z | 26.186° NE | 18.05° | 2026-04-01 17:19:37.051Z | 59.823° ENE |
| 6 mins | 2026-04-01 18:54:37.051Z | 314.742° NW | 2026-04-01 18:57:37.051Z | 95.792° ESE | 42.859° | 2026-04-01 19:00:37.051Z | 125.318° SE |
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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