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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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: 13 hours ago
TLE from 13 hours ago
0 STARLINK-2147
1 47736U 21017Q 25346.99368792 -.00003823 00000-0 -23799-3 0 9992
2 47736 53.0536 230.8131 0001328 91.1908 268.9233 15.06382310264858Epoch: 2025-12-12T23:50Z
TLE epoch observation values (Epoch: 2025-12-12T23:50:54.636Z)
Latitude
-0.00002°
Longitude
151.1581°
Altitude
548.162 km
Speed
7.589 km/s
True Right ascension
15h 23m 15s
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
11:02:11
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.456 km
Perigee altitude
546.617 km
Semi-major axis
6,925.674 km
Eccentricity
0.00013
Inclination
53.0536°
RAAN
230.8131°
Arg. of periapsis
91.1908°
True anomaly
268.90808°
Mean anomaly
268.9233°
Eccentric anomaly
268.91569°
Mean motion
3.76574 °/min
Orbital period
95.6 mins
BSTAR
-0.00023799
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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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-12-13 19:08:52.411Z | 227.011° WSW | 2025-12-13 19:11:52.411Z | 59.665° ENE | 43.227° | 2025-12-13 19:14:52.411Z | 51.136° ENE |
| 4 mins | 2025-12-13 20:49:52.411Z | 307.517° NW | 2025-12-13 20:51:52.411Z | 348.425° N | 19.848° | 2025-12-13 20:53:52.411Z | 21.953° NNE |
| 4 mins | 2025-12-14 00:11:52.411Z | 358.769° N | 2025-12-14 00:12:52.411Z | 18.736° NNE | 19.225° | 2025-12-14 00:15:52.411Z | 68.363° E |
| 6 mins | 2025-12-14 01:50:52.411Z | 312.675° NW | 2025-12-14 01:52:52.411Z | 354.775° N | 44.726° | 2025-12-14 01:56:52.411Z | 128.579° SE |
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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