STARLINK-2147, 47736
Orbit data source: Space-Track
STARLINK-2147, 47736 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 04 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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47736 intel report (Beta)
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Identifier
Orbit
Country
USRelated business
Manufacturer
SpaceX/Seattle
Mission
Partially 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: 10 hours ago
TLE from 10 hours ago
0 STARLINK-2147
1 47736U 21017Q 26131.20120277 .00027107 00000-0 65101-3 0 9995
2 47736 53.0734 270.5036 0002658 304.7120 55.3634 15.41174574287497Epoch: 2026-05-11T04:49Z
TLE epoch observation values (Epoch: 2026-05-11T04:49:43.919Z)
Latitude
0°
Longitude
-30.92273°
Altitude
442.506 km
Speed
7.648 km/s
True Right ascension
18h 02m 00s
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
22:50:18
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
444.726 km
Perigee altitude
441.1 km
Semi-major axis
6,821.05 km
Eccentricity
0.00027
Inclination
53.0734°
RAAN
270.5036°
Arg. of periapsis
304.712°
True anomaly
55.38847°
Mean anomaly
55.3634°
Eccentric anomaly
55.37593°
Mean motion
3.85271 °/min
Orbital period
93.44 mins
BSTAR
0.00065101
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Other satellites on launch #17 in the year 2021 (2021-03-04 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-2147 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2026-05-11 17:45:12.372Z | 351.748° N | 2026-05-11 17:46:12.372Z | 15.398° NNE | 21.44° | 2026-05-11 17:49:12.372Z | 80.218° E |
| 5 mins | 2026-05-11 19:22:12.372Z | 287.671° WNW | 2026-05-11 19:24:12.372Z | 210.673° SW | 35.937° | 2026-05-11 19:27:12.372Z | 150.533° SSE |
| 5 mins | 2026-05-12 12:10:12.372Z | 252.687° W | 2026-05-12 12:12:12.372Z | 348.888° N | 39.375° | 2026-05-12 12:15:12.372Z | 43.121° NE |
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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