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: 11 hours ago
TLE from 11 hours ago
0 STARLINK-2509
1 48318U 21036AU 26138.14016825 .00000496 00000-0 27726-4 0 9990
2 48318 53.1600 138.8815 0001199 85.7242 274.3897 15.31709074278669Epoch: 2026-05-18T03:21Z
TLE epoch observation values (Epoch: 2026-05-18T03:21:50.536Z)
Latitude
0.00001°
Longitude
-147.41176°
Altitude
471.55 km
Speed
7.632 km/s
True Right ascension
09h 15m 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
23:11:29
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
471.791 km
Perigee altitude
470.148 km
Semi-major axis
6,849.107 km
Eccentricity
0.00012
Inclination
53.16°
RAAN
138.8815°
Arg. of periapsis
85.7242°
True anomaly
274.376°
Mean anomaly
274.3897°
Eccentric anomaly
274.38285°
Mean motion
3.82906 °/min
Orbital period
94.02 mins
BSTAR
0.000027726
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-05-19 03:03:48.979Z | 249.768° W | 2026-05-19 03:05:48.979Z | 314.031° NW | 40.288° | 2026-05-19 03:08:48.979Z | 40.985° NE |
| 5 mins | 2026-05-19 07:59:48.979Z | 336.088° NNW | 2026-05-19 08:02:48.979Z | 33.735° NE | 19.019° | 2026-05-19 08:04:48.979Z | 70.142° E |
| 5 mins | 2026-05-19 09:38:48.979Z | 300.097° NW | 2026-05-19 09:40:48.979Z | 187.251° SSW | 42.584° | 2026-05-19 09:43:48.979Z | 139.263° SSE |
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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