STARLINK-2221, 48571
Orbit data source: Space-Track
STARLINK-2221, 48571 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Sat, 15 May 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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48571 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: 1 day ago
TLE from 1 day ago
0 STARLINK-2221
1 48571U 21041U 25348.90116990 .00001002 00000-0 86144-4 0 9990
2 48571 53.0541 162.2490 0001531 86.0621 274.0543 15.06393018252282Epoch: 2025-12-14T21:37Z
TLE epoch observation values (Epoch: 2025-12-14T21:37:41.079Z)
Latitude
-0.00001°
Longitude
114.02039°
Altitude
548.037 km
Speed
7.589 km/s
True Right ascension
10h 48m 59s
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
00:22:56
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.564 km
Perigee altitude
546.443 km
Semi-major axis
6,925.641 km
Eccentricity
0.00015
Inclination
53.0541°
RAAN
162.249°
Arg. of periapsis
86.0621°
True anomaly
274.0368°
Mean anomaly
274.0543°
Eccentric anomaly
274.04555°
Mean motion
3.76577 °/min
Orbital period
95.6 mins
BSTAR
0.000086144
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Other satellites on launch #41 in the year 2021 (2021-05-15 UTC)
Did you know?
You can import UDL-sourced sensor .json files into the Sandbox to generate a visibility chart that accounts for multi-vendor sensor geometry.STARLINK-2221 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2025-12-16 13:35:33.920Z | 204.987° SW | 2025-12-16 13:38:33.920Z | 155.495° SSE | 34.314° | 2025-12-16 13:42:33.920Z | 62.969° ENE |
| 5 mins | 2025-12-16 15:16:33.920Z | 283.688° WNW | 2025-12-16 15:18:33.920Z | 328.798° NNW | 26.898° | 2025-12-16 15:21:33.920Z | 28.817° NE |
| 6 mins | 2025-12-16 20:17:33.920Z | 324.258° NNW | 2025-12-16 20:20:33.920Z | 39.405° NE | 36.475° | 2025-12-16 20:23:33.920Z | 105.438° ESE |
| 5 mins | 2025-12-16 21:57:33.920Z | 273.592° WNW | 2025-12-16 21:59:33.920Z | 235.532° WSW | 22.287° | 2025-12-16 22:02:33.920Z | 180.746° SSW |
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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