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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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: 6 hours ago
TLE from 6 hours ago
0 STARLINK-2509
1 48318U 21036AU 25291.27886875 -.00000628 00000-0 -23269-4 0 9990
2 48318 53.0555 20.9253 0001459 92.8459 267.2697 15.06399640246561Epoch: 2025-10-18T06:41Z
TLE epoch observation values (Epoch: 2025-10-18T06:41:34.259Z)
Latitude
0°
Longitude
-106.47962°
Altitude
548.14 km
Speed
7.589 km/s
True Right ascension
01h 23m 42s
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
07:43:59
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.494 km
Perigee altitude
546.473 km
Semi-major axis
6,925.62 km
Eccentricity
0.00015
Inclination
53.0555°
RAAN
20.9253°
Arg. of periapsis
92.8459°
True anomaly
267.253°
Mean anomaly
267.2697°
Eccentric anomaly
267.26135°
Mean motion
3.76578 °/min
Orbital period
95.6 mins
BSTAR
-0.000023269
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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. |
|---|---|---|---|---|---|---|---|
| 4 mins | 2025-10-18 13:28:23.121Z | 336.627° NNW | 2025-10-18 13:30:23.121Z | 6.366° NNE | 14.776° | 2025-10-18 13:32:23.121Z | 39.469° NE |
| 6 mins | 2025-10-18 15:08:23.121Z | 327.17° NNW | 2025-10-18 15:11:23.121Z | 43.909° NE | 34.192° | 2025-10-18 15:14:23.121Z | 102.522° ESE |
| 5 mins | 2025-10-18 16:48:23.121Z | 274.617° WNW | 2025-10-18 16:50:23.121Z | 233.048° WSW | 24.635° | 2025-10-18 16:53:23.121Z | 176.184° S |
| 5 mins | 2025-10-19 08:21:23.121Z | 202.496° SSW | 2025-10-19 08:23:23.121Z | 136.321° SSE | 39.383° | 2025-10-19 08:26:23.121Z | 61.76° ENE |
| 5 mins | 2025-10-19 10:01:23.121Z | 294.087° NW | 2025-10-19 10:03:23.121Z | 340.45° N | 24.453° | 2025-10-19 10:06:23.121Z | 30.953° 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 ascending order |
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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