STARLINK-2431, 47839
Orbit data source: Space-Track
STARLINK-2431, 47839 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 11 Mar 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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47839 intel report (Beta)
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Edit Public Description
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: 8 hours ago
TLE from 8 hours ago
0 STARLINK-2431
1 47839U 21018BE 25292.94491326 .00005838 00000-0 41044-3 0 9991
2 47839 53.0524 133.4473 0001349 93.6805 266.4338 15.06406155255811Epoch: 2025-10-19T22:40Z
TLE epoch observation values (Epoch: 2025-10-19T22:40:40.505Z)
Latitude
-0.00005°
Longitude
124.62419°
Altitude
548.13 km
Speed
7.589 km/s
True Right ascension
08h 53m 47s
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
01:10:38
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.398 km
Perigee altitude
546.529 km
Semi-major axis
6,925.601 km
Eccentricity
0.00013
Inclination
53.0524°
RAAN
133.4473°
Arg. of periapsis
93.6805°
True anomaly
266.41837°
Mean anomaly
266.4338°
Eccentric anomaly
266.42609°
Mean motion
3.7658 °/min
Orbital period
95.6 mins
BSTAR
0.00041044
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Other satellites on launch #18 in the year 2021 (2021-03-11 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-2431 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 | 2025-10-20 16:23:15.611Z | 235.099° WSW | 2025-10-20 16:26:15.611Z | 9.178° NNE | 43.94° | 2025-10-20 16:29:15.611Z | 47.404° ENE |
| 4 mins | 2025-10-20 18:04:15.611Z | 306.703° NW | 2025-10-20 18:06:15.611Z | 344.051° N | 18.69° | 2025-10-20 18:08:15.611Z | 18.584° NNE |
| 4 mins | 2025-10-20 21:26:15.611Z | 354.327° N | 2025-10-20 21:27:15.611Z | 14.468° NNE | 20.549° | 2025-10-20 21:30:15.611Z | 69.326° E |
| 6 mins | 2025-10-20 23:05:15.611Z | 306.206° NW | 2025-10-20 23:07:15.611Z | 278.144° WNW | 43.905° | 2025-10-20 23:11:15.611Z | 134.795° 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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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