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: 14 hours ago
TLE from 14 hours ago
0 STARLINK-2147
1 47736U 21017Q 26235.96092996 .00079223 00000-0 61119-3 0 9990
2 47736 53.0697 124.9237 0002115 162.0492 198.0601 15.71278584303784Epoch: 2026-08-23T23:03Z
TLE epoch observation values (Epoch: 2026-08-23T23:03:44.348Z)
Latitude
0.00002°
Longitude
166.73945°
Altitude
357.502 km
Speed
7.695 km/s
True Right ascension
08h 19m 41s
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
04:18:51
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
356.942 km
Perigee altitude
354.093 km
Semi-major axis
6,733.654 km
Eccentricity
0.00021
Inclination
53.0697°
RAAN
124.9237°
Arg. of periapsis
162.0492°
True anomaly
198.05259°
Mean anomaly
198.0601°
Eccentric anomaly
198.05634°
Mean motion
3.92796 °/min
Orbital period
91.65 mins
BSTAR
0.00061119
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-08-24 19:05:01.021Z | 210.138° SW | 2026-08-24 19:07:01.021Z | 153.741° SSE | 37.29° | 2026-08-24 19:10:01.021Z | 59.584° ENE |
| 4 mins | 2026-08-25 01:30:01.021Z | 341.978° N | 2026-08-25 01:31:01.021Z | 13.725° NNE | 28.023° | 2026-08-25 01:34:01.021Z | 100.979° ESE |
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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Click to sort rows by Secondary header in ascending order | Click to sort rows by Secondary name header in ascending order | Click to sort rows by Country header in ascending order | Click to sort rows by Owner header in ascending order | Click to sort rows by Obj. Type header in ascending order | Click to sort rows by Miss dist. header in ascending order | Click to sort rows by Rel. speed header in ascending order | Click to sort rows by Apr. angle header in ascending order | Click to sort rows by TCA header in descending order |
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