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: 12 hours ago
TLE from 12 hours ago
0 STARLINK-2161
1 47747U 21017AB 26131.09290942 .00000335 00000-0 22563-4 0 9991
2 47747 53.1597 263.7195 0001262 84.0158 276.0987 15.31703798287573Epoch: 2026-05-11T02:13Z
TLE epoch observation values (Epoch: 2026-05-11T02:13:47.373Z)
Latitude
-0.00006°
Longitude
1.38548°
Altitude
471.537 km
Speed
7.632 km/s
True Right ascension
17h 34m 52s
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
22:31:39
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
471.85 km
Perigee altitude
470.121 km
Semi-major axis
6,849.122 km
Eccentricity
0.00013
Inclination
53.1597°
RAAN
263.7195°
Arg. of periapsis
84.0158°
True anomaly
276.08432°
Mean anomaly
276.0987°
Eccentric anomaly
276.09151°
Mean motion
3.82905 °/min
Orbital period
94.02 mins
BSTAR
0.000022563
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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 | 2026-05-11 18:24:37.137Z | 313.409° NW | 2026-05-11 18:26:37.137Z | 109.915° ESE | 43.728° | 2026-05-11 18:29:37.137Z | 128.572° SE |
| 6 mins | 2026-05-12 11:17:37.137Z | 226.894° WSW | 2026-05-12 11:20:37.137Z | 186.469° SSW | 44.778° | 2026-05-12 11:23:37.137Z | 51.261° ENE |
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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