STARLINK-2457, 48321
Orbit data source: Space-Track
STARLINK-2457, 48321 is a payload satellite owned by SpaceX/Seattle (US) in LEO that was launched on Thu, 29 Apr 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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48321 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: 8 hours ago
TLE from 8 hours ago
0 STARLINK-2457
1 48321U 21036AX 26138.18201542 .00006081 00000-0 20755-3 0 9990
2 48321 53.1595 137.8905 0001623 96.8923 263.2263 15.31700417278684Epoch: 2026-05-18T04:22Z
TLE epoch observation values (Epoch: 2026-05-18T04:22:06.132Z)
Latitude
-0.00002°
Longitude
-163.50901°
Altitude
471.77 km
Speed
7.631 km/s
True Right ascension
09h 11m 33s
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
21:24:37
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
472.107 km
Perigee altitude
469.884 km
Semi-major axis
6,849.132 km
Eccentricity
0.00016
Inclination
53.1595°
RAAN
137.8905°
Arg. of periapsis
96.8923°
True anomaly
263.20783°
Mean anomaly
263.2263°
Eccentric anomaly
263.21707°
Mean motion
3.82904 °/min
Orbital period
94.02 mins
BSTAR
0.00020755
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Other satellites on launch #36 in the year 2021 (2021-04-29 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-2457 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 | 2026-05-19 02:28:14.754Z | 219.267° SW | 2026-05-19 02:31:14.754Z | 102.64° ESE | 42.454° | 2026-05-19 02:34:14.754Z | 54.699° ENE |
| 4 mins | 2026-05-19 07:25:14.754Z | 344.434° N | 2026-05-19 07:27:14.754Z | 19.309° NNE | 14.438° | 2026-05-19 07:29:14.754Z | 53.344° ENE |
| 5 mins | 2026-05-19 09:03:14.754Z | 322.035° NNW | 2026-05-19 09:05:14.754Z | 7.966° NNE | 39.055° | 2026-05-19 09:08:14.754Z | 113.407° SE |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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