STARLINK-2391, 47810
Orbit data source: Space-Track
STARLINK-2391, 47810 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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47810 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-2391
1 47810U 21018Z 25293.07760161 .00011493 00000-0 78860-3 0 9991
2 47810 53.0547 172.8512 0001383 104.9536 255.1606 15.06427620255319Epoch: 2025-10-20T01:51Z
TLE epoch observation values (Epoch: 2025-10-20T01:51:44.779Z)
Latitude
-0.00002°
Longitude
116.12952°
Altitude
548.252 km
Speed
7.589 km/s
True Right ascension
11h 31m 24s
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
04:25:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.355 km
Perigee altitude
546.44 km
Semi-major axis
6,925.535 km
Eccentricity
0.00014
Inclination
53.0547°
RAAN
172.8512°
Arg. of periapsis
104.9536°
True anomaly
255.14528°
Mean anomaly
255.1606°
Eccentric anomaly
255.15294°
Mean motion
3.76585 °/min
Orbital period
95.6 mins
BSTAR
0.0007886
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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-2391 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 17:56:36.211Z | 180.896° SSW | 2025-10-20 17:59:36.211Z | 118.162° SE | 24.486° | 2025-10-20 18:02:36.211Z | 71.713° E |
| 5 mins | 2025-10-20 19:36:36.211Z | 270.6° WNW | 2025-10-20 19:38:36.211Z | 330.797° NNW | 34.175° | 2025-10-20 19:41:36.211Z | 35.08° NE |
| 5 mins | 2025-10-21 00:38:36.211Z | 344.799° N | 2025-10-21 00:40:36.211Z | 38.503° NE | 28.544° | 2025-10-21 00:43:36.211Z | 92.38° ESE |
| 6 mins | 2025-10-21 02:17:36.211Z | 284.575° WNW | 2025-10-21 02:19:36.211Z | 237.993° WSW | 32.024° | 2025-10-21 02:23:36.211Z | 158.229° S |
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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