STARLINK-4185, 53139
Orbit data source: Space-Track
STARLINK-4185, 53139 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sun, 17 Jul 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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53139 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: 3 days ago
TLE from 3 days ago
0 STARLINK-4185
1 53139U 22083H 26170.93461413 .00000347 00000-0 39903-4 0 9995
2 53139 53.1623 75.0157 0001139 86.3743 273.7379 15.08837500216658Epoch: 2026-06-19T22:25Z
TLE epoch observation values (Epoch: 2026-06-19T22:25:50.660Z)
Latitude
-0.00001°
Longitude
-169.60186°
Altitude
540.591 km
Speed
7.593 km/s
True Right ascension
05h 00m 03s
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
21:31:08
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
540.793 km
Perigee altitude
539.217 km
Semi-major axis
6,918.142 km
Eccentricity
0.00011
Inclination
53.1623°
RAAN
75.0157°
Arg. of periapsis
86.3743°
True anomaly
273.72488°
Mean anomaly
273.7379°
Eccentric anomaly
273.73139°
Mean motion
3.77189 °/min
Orbital period
95.44 mins
BSTAR
0.000039903
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Other satellites on launch #83 in the year 2022 (2022-07-17 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-4185 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 | 2026-06-22 18:57:07.546Z | 196.982° SSW | 2026-06-22 19:00:07.546Z | 128.7° SE | 32.475° | 2026-06-22 19:03:07.546Z | 67.552° E |
| 5 mins | 2026-06-22 20:37:07.546Z | 277.676° WNW | 2026-06-22 20:39:07.546Z | 321.262° NNW | 27.994° | 2026-06-22 20:42:07.546Z | 27.705° NE |
| 6 mins | 2026-06-23 01:38:07.546Z | 329.353° NNW | 2026-06-23 01:41:07.546Z | 49.743° ENE | 32.857° | 2026-06-23 01:44:07.546Z | 102.487° ESE |
| 5 mins | 2026-06-23 03:18:07.546Z | 270.951° WNW | 2026-06-23 03:20:07.546Z | 224.283° SW | 25.095° | 2026-06-23 03:23:07.546Z | 172.288° 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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