STARLINK-4139, 52879
Orbit data source: Space-Track
STARLINK-4139, 52879 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Fri, 17 Jun 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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52879 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: 2 days ago
TLE from 2 days ago
0 STARLINK-4139
1 52879U 22062BB 26171.41668980 .00012652 00000-0 68910-3 0 9995
2 52879 53.1600 272.7016 0000226 83.6922 150.5711 15.14769631 5775Epoch: 2026-06-20T10:00Z
TLE epoch observation values (Epoch: 2026-06-20T10:00:01.998Z)
Latitude
-40.71516°
Longitude
73.94361°
Altitude
535.282 km
Speed
7.595 km/s
True Right ascension
08h 50m 20s
True Declination
-40° 32' 23"
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
21:35:12
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
522.089 km
Perigee altitude
521.777 km
Semi-major axis
6,900.07 km
Eccentricity
0.00002
Inclination
53.16°
RAAN
272.7016°
Arg. of periapsis
83.6922°
True anomaly
150.57237°
Mean anomaly
150.5711°
Eccentric anomaly
150.57174°
Mean motion
3.78672 °/min
Orbital period
95.07 mins
BSTAR
0.0006891
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Other satellites on launch #62 in the year 2022 (2022-06-17 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-4139 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 15:18:11.122Z | 326.006° NNW | 2026-06-22 15:21:11.122Z | 60.795° ENE | 35.798° | 2026-06-22 15:24:11.122Z | 109.849° ESE |
| 4 mins | 2026-06-22 16:58:11.122Z | 257.235° W | 2026-06-22 16:59:11.122Z | 236.001° WSW | 20.328° | 2026-06-22 17:02:11.122Z | 182.611° SSW |
| 6 mins | 2026-06-23 08:24:11.122Z | 212.176° SW | 2026-06-23 08:27:11.122Z | 115.187° SE | 40.414° | 2026-06-23 08:30:11.122Z | 58.238° ENE |
| 5 mins | 2026-06-23 10:04:11.122Z | 293.028° NW | 2026-06-23 10:06:11.122Z | 335.973° NNW | 22.665° | 2026-06-23 10:09:11.122Z | 28.766° NE |
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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