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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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: 10 hours ago
TLE from 10 hours ago
0 STARLINK-2161
1 47747U 21017AB 25346.95314747 -.00001438 00000-0 -77711-4 0 9995
2 47747 53.0521 230.9923 0001444 91.1991 268.9163 15.06385089264820Epoch: 2025-12-12T22:52Z
TLE epoch observation values (Epoch: 2025-12-12T22:52:31.941Z)
Latitude
-0.00005°
Longitude
165.9718°
Altitude
548.155 km
Speed
7.589 km/s
True Right ascension
15h 23m 58s
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
07:30:58
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.528 km
Perigee altitude
546.528 km
Semi-major axis
6,925.665 km
Eccentricity
0.00014
Inclination
53.0521°
RAAN
230.9923°
Arg. of periapsis
91.1991°
True anomaly
268.89976°
Mean anomaly
268.9163°
Eccentric anomaly
268.90803°
Mean motion
3.76575 °/min
Orbital period
95.6 mins
BSTAR
-0.000077711
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-12-13 18:08:14.127Z | 178.273° S | 2025-12-13 18:11:14.127Z | 120.483° SE | 22.562° | 2025-12-13 18:13:14.127Z | 83.904° E |
| 5 mins | 2025-12-13 19:48:14.127Z | 265.819° W | 2025-12-13 19:50:14.127Z | 328.712° NNW | 36.085° | 2025-12-13 19:53:14.127Z | 36.38° NE |
| 5 mins | 2025-12-14 00:50:14.127Z | 345.379° N | 2025-12-14 00:52:14.127Z | 35.881° NE | 27.106° | 2025-12-14 00:55:14.127Z | 89.249° E |
| 6 mins | 2025-12-14 02:29:14.127Z | 288.433° WNW | 2025-12-14 02:31:14.127Z | 242.956° WSW | 34.137° | 2025-12-14 02:35:14.127Z | 155.103° SSE |
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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