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
23:18:32
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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-06-22 13:39:14.057Z | 345.797° N | 2026-06-22 13:41:14.057Z | 19.461° NNE | 14.845° | 2026-06-22 13:43:14.057Z | 50.928° ENE |
| 6 mins | 2026-06-22 15:18:14.057Z | 326.406° NNW | 2026-06-22 15:20:14.057Z | 9.656° NNE | 35.846° | 2026-06-22 15:24:14.057Z | 110.072° ESE |
| 4 mins | 2026-06-22 16:58:14.057Z | 256.312° W | 2026-06-22 16:59:14.057Z | 234.873° WSW | 20.361° | 2026-06-22 17:02:14.057Z | 182.114° SSW |
| 6 mins | 2026-06-23 08:24:14.057Z | 211.94° SW | 2026-06-23 08:27:14.057Z | 111.65° ESE | 40.202° | 2026-06-23 08:30:14.057Z | 58.076° ENE |
| 5 mins | 2026-06-23 10:04:14.057Z | 293.772° NW | 2026-06-23 10:06:14.057Z | 337.224° NNW | 22.645° | 2026-06-23 10:09:14.057Z | 29.215° 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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