STARLINK-2509, 48318
Orbit data source: Space-Track
STARLINK-2509, 48318 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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48318 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: 6 hours ago
TLE from 6 hours ago
0 STARLINK-2509
1 48318U 21036AU 26242.47556995 .00001486 00000-0 59633-4 0 9991
2 48318 53.1603 13.1325 0001283 83.6921 276.4227 15.31711999294654Epoch: 2026-08-30T11:24Z
TLE epoch observation values (Epoch: 2026-08-30T11:24:49.243Z)
Latitude
0.00001°
Longitude
-136.74329°
Altitude
471.506 km
Speed
7.632 km/s
True Right ascension
00h 52m 31s
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
08:48:26
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
471.84 km
Perigee altitude
470.082 km
Semi-major axis
6,849.098 km
Eccentricity
0.00013
Inclination
53.1603°
RAAN
13.1325°
Arg. of periapsis
83.6921°
True anomaly
276.40809°
Mean anomaly
276.4227°
Eccentric anomaly
276.41539°
Mean motion
3.82907 °/min
Orbital period
94.02 mins
BSTAR
0.000059633
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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-2509 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. |
|---|---|---|---|---|---|---|---|
| 7 mins | 2026-08-30 18:09:17.024Z | 317.879° NNW | 2026-08-30 18:12:17.024Z | 4.333° NNE | 37.197° | 2026-08-30 18:16:17.024Z | 115.001° SE |
| 5 mins | 2026-08-31 11:05:17.024Z | 202.969° SW | 2026-08-31 11:07:17.024Z | 130.405° SE | 38.421° | 2026-08-31 11:10:17.024Z | 60.487° ENE |
| 4 mins | 2026-08-31 12:43:17.024Z | 290.245° WNW | 2026-08-31 12:45:17.024Z | 335.081° NNW | 21.915° | 2026-08-31 12:47:17.024Z | 18.085° NNE |
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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