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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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-2431
1 47839U 21018BE 26297.26239012 .00023741 00000-0 76884-3 0 9997
2 47839 53.1633 233.1555 0001177 104.9055 255.2077 15.31930976312129Epoch: 2026-10-24T06:17Z
TLE epoch observation values (Epoch: 2026-10-24T06:17:50.506Z)
Latitude
-0.00001°
Longitude
106.02395°
Altitude
471.158 km
Speed
7.632 km/s
True Right ascension
15h 32m 37s
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
16:35:19
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
471.114 km
Perigee altitude
469.502 km
Semi-major axis
6,848.445 km
Eccentricity
0.00012
Inclination
53.1633°
RAAN
233.1555°
Arg. of periapsis
104.9055°
True anomaly
255.19466°
Mean anomaly
255.2077°
Eccentric anomaly
255.20118°
Mean motion
3.82962 °/min
Orbital period
94 mins
BSTAR
0.00076884
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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 | 2026-10-25 21:35:41.814Z | 198.182° SSW | 2026-10-25 21:38:41.814Z | 136.878° SSE | 35.289° | 2026-10-25 21:41:41.814Z | 69.028° E |
| 5 mins | 2026-10-25 23:14:41.814Z | 281.01° WNW | 2026-10-25 23:16:41.814Z | 332.822° NNW | 30.069° | 2026-10-25 23:19:41.814Z | 31.703° NE |
| 4 mins | 2026-10-26 04:11:41.814Z | 346.936° N | 2026-10-26 04:12:41.814Z | 13.612° NNE | 31.813° | 2026-10-26 04:15:41.814Z | 90.78° ESE |
| 5 mins | 2026-10-26 05:48:41.814Z | 281.415° WNW | 2026-10-26 05:50:41.814Z | 236.109° WSW | 30.24° | 2026-10-26 05:53:41.814Z | 169.21° S |
| 5 mins | 2026-10-26 21:05:41.814Z | 178.61° S | 2026-10-26 21:07:41.814Z | 128.025° SE | 28.897° | 2026-10-26 21:10:41.814Z | 71.005° E |
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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