STARLINK-2583, 48439
Orbit data source: Space-Track
STARLINK-2583, 48439 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sun, 09 May 2021 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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48439 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
260 kg wet, ~248 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-2583
1 48439U 21040M 26171.42289057 .00000917 00000-0 41318-4 0 9997
2 48439 53.1619 60.4525 0001283 96.0049 264.1099 15.31706995282413Epoch: 2026-06-20T10:08Z
TLE epoch observation values (Epoch: 2026-06-20T10:08:57.745Z)
Latitude
0.00002°
Longitude
-0.42582°
Altitude
471.71 km
Speed
7.631 km/s
True Right ascension
04h 01m 48s
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
21:25:07
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
471.854 km
Perigee altitude
470.097 km
Semi-major axis
6,849.112 km
Eccentricity
0.00013
Inclination
53.1619°
RAAN
60.4525°
Arg. of periapsis
96.0049°
True anomaly
264.09528°
Mean anomaly
264.1099°
Eccentric anomaly
264.10259°
Mean motion
3.82906 °/min
Orbital period
94.02 mins
BSTAR
0.000041318
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Other satellites on launch #40 in the year 2021 (2021-05-09 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-2583 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 18:42:07.747Z | 225.894° WSW | 2026-06-22 18:45:07.747Z | 176.832° S | 44.644° | 2026-06-22 18:48:07.747Z | 51.883° ENE |
| 5 mins | 2026-06-23 01:18:07.747Z | 321.725° NNW | 2026-06-23 01:20:07.747Z | 67.505° E | 42.157° | 2026-06-23 01:23:07.747Z | 121.247° 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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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