STARLINK-2251, 48594
Orbit data source: Space-Track
STARLINK-2251, 48594 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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48594 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: 22 hours ago
TLE from 22 hours ago
0 STARLINK-2251
1 48594U 21041AT 25348.69015836 .00002043 00000-0 15603-3 0 9995
2 48594 53.0536 133.2804 0001402 86.8559 273.2591 15.06392944252677Epoch: 2025-12-14T16:33Z
TLE epoch observation values (Epoch: 2025-12-14T16:33:49.682Z)
Latitude
0.00004°
Longitude
161.22396°
Altitude
548.057 km
Speed
7.589 km/s
True Right ascension
08h 53m 07s
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
13:18:48
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.475 km
Perigee altitude
546.533 km
Semi-major axis
6,925.641 km
Eccentricity
0.00014
Inclination
53.0536°
RAAN
133.2804°
Arg. of periapsis
86.8559°
True anomaly
273.24306°
Mean anomaly
273.2591°
Eccentric anomaly
273.25108°
Mean motion
3.76576 °/min
Orbital period
95.6 mins
BSTAR
0.00015603
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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-2251 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 | 2025-12-15 18:32:15.148Z | 337.863° N | 2025-12-15 18:34:15.148Z | 36.174° NE | 33.092° | 2025-12-15 18:37:15.148Z | 99.072° ESE |
| 5 mins | 2025-12-15 20:11:15.148Z | 278.617° WNW | 2025-12-15 20:13:15.148Z | 238.198° WSW | 26.019° | 2025-12-15 20:16:15.148Z | 175.438° S |
| 6 mins | 2025-12-16 11:44:15.148Z | 200.349° SSW | 2025-12-16 11:46:15.148Z | 145.738° SSE | 37.501° | 2025-12-16 11:50:15.148Z | 59.927° ENE |
| 5 mins | 2025-12-16 13:24:15.148Z | 289.837° WNW | 2025-12-16 13:26:15.148Z | 336.188° NNW | 25.533° | 2025-12-16 13:29:15.148Z | 30.167° NE |
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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