STARLINK-2231, 48577
Orbit data source: Space-Track
STARLINK-2231, 48577 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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48577 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: 3 days ago
TLE from 3 days ago
0 STARLINK-2231
1 48577U 21041AA 26170.92523425 .00000860 00000-0 39475-4 0 9993
2 48577 53.1605 11.2931 0001202 96.6268 263.4871 15.31700749280932Epoch: 2026-06-19T22:12Z
TLE epoch observation values (Epoch: 2026-06-19T22:12:20.239Z)
Latitude
0.00005°
Longitude
130.06159°
Altitude
471.732 km
Speed
7.631 km/s
True Right ascension
00h 45m 10s
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
23:20:06
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
471.818 km
Perigee altitude
470.171 km
Semi-major axis
6,849.131 km
Eccentricity
0.00012
Inclination
53.1605°
RAAN
11.2931°
Arg. of periapsis
96.6268°
True anomaly
263.47342°
Mean anomaly
263.4871°
Eccentric anomaly
263.48026°
Mean motion
3.82904 °/min
Orbital period
94.02 mins
BSTAR
0.000039475
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Other satellites on launch #41 in the year 2021 (2021-05-15 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-2231 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 | 2026-06-22 14:33:47.424Z | 190.758° SSW | 2026-06-22 14:36:47.424Z | 131.059° SE | 25.518° | 2026-06-22 14:39:47.424Z | 72.001° E |
| 5 mins | 2026-06-22 16:12:47.424Z | 277.663° WNW | 2026-06-22 16:14:47.424Z | 339.084° N | 29.347° | 2026-06-22 16:17:47.424Z | 35.137° NE |
| 4 mins | 2026-06-22 21:09:47.424Z | 352.024° N | 2026-06-22 21:10:47.424Z | 18.773° NNE | 25.606° | 2026-06-22 21:13:47.424Z | 87.324° E |
| 5 mins | 2026-06-22 22:46:47.424Z | 285.014° WNW | 2026-06-22 22:48:47.424Z | 234.611° WSW | 30.707° | 2026-06-22 22:51:47.424Z | 162.476° 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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