STARLINK-2501, 48330
Orbit data source: Space-Track
STARLINK-2501, 48330 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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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: 4 hours ago
TLE from 4 hours ago
0 STARLINK-2501
1 48330U 21036BG 25355.52479069 .00000924 00000-0 80910-4 0 9999
2 48330 53.0553 92.5142 0001172 93.1952 266.9172 15.06400068256257Epoch: 2025-12-21T12:35Z
TLE epoch observation values (Epoch: 2025-12-21T12:35:41.915Z)
Latitude
0.00004°
Longitude
173.25359°
Altitude
548.134 km
Speed
7.589 km/s
True Right ascension
06h 10m 03s
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
16:00:32
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.294 km
Perigee altitude
546.67 km
Semi-major axis
6,925.619 km
Eccentricity
0.00012
Inclination
53.0553°
RAAN
92.5142°
Arg. of periapsis
93.1952°
True anomaly
266.90379°
Mean anomaly
266.9172°
Eccentric anomaly
266.91049°
Mean motion
3.76578 °/min
Orbital period
95.6 mins
BSTAR
0.00008091
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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-2501 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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-12-21 17:56:56.689Z | 265.707° W | 2025-12-21 17:58:56.689Z | 235.206° WSW | 14.249° | 2025-12-21 18:00:56.689Z | 204.165° SW |
| 6 mins | 2025-12-22 09:29:56.689Z | 235.982° WSW | 2025-12-22 09:31:56.689Z | 286.342° WNW | 44.403° | 2025-12-22 09:35:56.689Z | 48.3° ENE |
| 4 mins | 2025-12-22 11:10:56.689Z | 316.306° NNW | 2025-12-22 11:11:56.689Z | 335.724° NNW | 18.78° | 2025-12-22 11:14:56.689Z | 25.637° NE |
| 4 mins | 2025-12-22 14:31:56.689Z | 347.699° N | 2025-12-22 14:33:56.689Z | 27.769° NE | 20.605° | 2025-12-22 14:35:56.689Z | 64.198° ENE |
| 6 mins | 2025-12-22 16:10:56.689Z | 307.165° NW | 2025-12-22 16:13:56.689Z | 161.297° S | 43.936° | 2025-12-22 16:16:56.689Z | 134.698° SE |
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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