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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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: 19 hours ago
TLE from 19 hours ago
0 STARLINK-2457
1 48321U 21036AX 25342.75301235 .00000219 00000-0 33594-4 0 9992
2 48321 53.0533 149.8546 0001371 98.0630 262.0515 15.06409790254322Epoch: 2025-12-08T18:04Z
TLE epoch observation values (Epoch: 2025-12-08T18:04:20.267Z)
Latitude
0.00004°
Longitude
161.02266°
Altitude
548.192 km
Speed
7.589 km/s
True Right ascension
09h 59m 25s
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
10:53:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.402 km
Perigee altitude
546.503 km
Semi-major axis
6,925.589 km
Eccentricity
0.00014
Inclination
53.0533°
RAAN
149.8546°
Arg. of periapsis
98.063°
True anomaly
262.03594°
Mean anomaly
262.0515°
Eccentric anomaly
262.04372°
Mean motion
3.76581 °/min
Orbital period
95.6 mins
BSTAR
0.000033594
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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 | 2025-12-09 13:20:12.565Z | 196.499° SSW | 2025-12-09 13:23:12.565Z | 137.422° SSE | 31.208° | 2025-12-09 13:26:12.565Z | 70.872° E |
| 6 mins | 2025-12-09 15:00:12.565Z | 271.643° WNW | 2025-12-09 15:03:12.565Z | 341.321° N | 29.104° | 2025-12-09 15:06:12.565Z | 33.856° NE |
| 6 mins | 2025-12-09 20:02:12.565Z | 330.63° NNW | 2025-12-09 20:04:12.565Z | 12.92° NNE | 32.41° | 2025-12-09 20:08:12.565Z | 102.299° ESE |
| 5 mins | 2025-12-09 21:42:12.565Z | 272.351° WNW | 2025-12-09 21:44:12.565Z | 225.835° WSW | 25.91° | 2025-12-09 21:47:12.565Z | 171.943° 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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