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: 5 hours ago
TLE from 5 hours ago
0 STARLINK-2431
1 47839U 21018BE 26035.83334490 .01338272 00000-0 65638-1 0 9998
2 47839 53.0900 8.9689 0002224 85.3942 40.5286 15.14766145 5832Epoch: 2026-02-04T20:00Z
TLE epoch observation values (Epoch: 2026-02-04T20:00:00.999Z)
Latitude
40.47354°
Longitude
74.37433°
Altitude
524.208 km
Speed
7.607 km/s
True Right ascension
09h 57m 29s
True Declination
40° 17' 53"
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
02:32:02
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
523.489 km
Perigee altitude
520.42 km
Semi-major axis
6,900.092 km
Eccentricity
0.00022
Inclination
53.09°
RAAN
8.9689°
Arg. of periapsis
85.3942°
True anomaly
40.54516°
Mean anomaly
40.5286°
Eccentric anomaly
40.53688°
Mean motion
3.7867 °/min
Orbital period
95.07 mins
BSTAR
0.065638
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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 | 2026-02-05 01:59:47.245Z | 264.944° W | 2026-02-05 02:02:47.245Z | 316.165° NNW | 28.17° | 2026-02-05 02:05:47.245Z | 27.553° NE |
| 5 mins | 2026-02-05 07:00:47.245Z | 333.353° NNW | 2026-02-05 07:02:47.245Z | 20.107° NNE | 31.211° | 2026-02-05 07:05:47.245Z | 94.818° ESE |
| 5 mins | 2026-02-05 08:39:47.245Z | 276.796° WNW | 2026-02-05 08:41:47.245Z | 231.054° WSW | 26.359° | 2026-02-05 08:44:47.245Z | 171.233° S |
| 5 mins | 2026-02-06 00:05:47.245Z | 193.082° SSW | 2026-02-06 00:07:47.245Z | 143.63° SSE | 32.607° | 2026-02-06 00:10:47.245Z | 68.978° E |
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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