STARLINK-2161, 47747
Orbit data source: Space-Track
STARLINK-2161, 47747 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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47747 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: 18 hours ago
TLE from 18 hours ago
0 STARLINK-2161
1 47747U 21017AB 26235.75456683 .00001652 00000-0 64998-4 0 9996
2 47747 53.1609 136.4581 0001280 97.7796 262.3351 15.31697967303618Epoch: 2026-08-23T18:06Z
TLE epoch observation values (Epoch: 2026-08-23T18:06:34.574Z)
Latitude
0.00001°
Longitude
-107.23203°
Altitude
471.763 km
Speed
7.631 km/s
True Right ascension
09h 05m 49s
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
02:49:30
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
471.879 km
Perigee altitude
470.126 km
Semi-major axis
6,849.14 km
Eccentricity
0.00013
Inclination
53.1609°
RAAN
136.4581°
Arg. of periapsis
97.7796°
True anomaly
262.32056°
Mean anomaly
262.3351°
Eccentric anomaly
262.32783°
Mean motion
3.82903 °/min
Orbital period
94.02 mins
BSTAR
0.000064998
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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-2161 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 | 2026-08-24 19:18:54.595Z | 194.898° SSW | 2026-08-24 19:21:54.595Z | 139.567° SSE | 26.896° | 2026-08-24 19:24:54.595Z | 72.648° E |
| 5 mins | 2026-08-24 20:57:54.595Z | 275.917° WNW | 2026-08-24 20:59:54.595Z | 329.222° NNW | 28.513° | 2026-08-24 21:02:54.595Z | 32.46° NE |
| 4 mins | 2026-08-25 01:54:54.595Z | 345.937° N | 2026-08-25 01:56:54.595Z | 43.836° NE | 26.496° | 2026-08-25 01:58:54.595Z | 86.42° E |
| 4 mins | 2026-08-25 03:32:54.595Z | 271.193° WNW | 2026-08-25 03:33:54.595Z | 243.225° WSW | 28.442° | 2026-08-25 03:36:54.595Z | 167.153° 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 descending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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