STARLINK-2017, 47351
Orbit data source: Space-Track
STARLINK-2017, 47351 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Wed, 20 Jan 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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47351 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-2017
1 47351U 21005C 26171.43860584 .00000175 00000-0 17407-4 0 9999
2 47351 53.1579 255.6524 0001214 79.6109 280.5029 15.31699670299464Epoch: 2026-06-20T10:31Z
TLE epoch observation values (Epoch: 2026-06-20T10:31:35.544Z)
Latitude
-0.00004°
Longitude
-170.89895°
Altitude
471.49 km
Speed
7.632 km/s
True Right ascension
17h 02m 36s
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
21:23:31
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
471.829 km
Perigee altitude
470.166 km
Semi-major axis
6,849.135 km
Eccentricity
0.00012
Inclination
53.1579°
RAAN
255.6524°
Arg. of periapsis
79.6109°
True anomaly
280.48922°
Mean anomaly
280.5029°
Eccentric anomaly
280.49606°
Mean motion
3.82904 °/min
Orbital period
94.02 mins
BSTAR
0.000017407
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Other satellites on launch #5 in the year 2021 (2021-01-20 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-2017 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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-06-22 14:43:31.854Z | 309.509° NW | 2026-06-22 14:45:31.854Z | 140.637° SSE | 44.684° | 2026-06-22 14:48:31.854Z | 131.649° SE |
| 5 mins | 2026-06-23 07:37:31.854Z | 230.609° WSW | 2026-06-23 07:39:31.854Z | 240.934° WSW | 44.223° | 2026-06-23 07:42:31.854Z | 49.188° ENE |
| 4 mins | 2026-06-23 09:16:31.854Z | 308.135° NW | 2026-06-23 09:17:31.854Z | 327.303° NNW | 16.715° | 2026-06-23 09:20:31.854Z | 22.306° NNE |
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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