STARLINK-2543, 48278
Orbit data source: Space-Track
STARLINK-2543, 48278 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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48278 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: 5 hours ago
TLE from 5 hours ago
0 STARLINK-2543
1 48278U 21036C 25337.31026466 .00002082 00000-0 15858-3 0 9991
2 48278 53.0537 99.3658 0001279 90.7928 269.3208 15.06404404254557Epoch: 2025-12-03T07:26Z
TLE epoch observation values (Epoch: 2025-12-03T07:26:46.866Z)
Latitude
0.00001°
Longitude
-84.71236°
Altitude
548.088 km
Speed
7.589 km/s
True Right ascension
06h 37m 27s
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
10:05:23
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.355 km
Perigee altitude
546.583 km
Semi-major axis
6,925.606 km
Eccentricity
0.00013
Inclination
53.0537°
RAAN
99.3658°
Arg. of periapsis
90.7928°
True anomaly
269.30614°
Mean anomaly
269.3208°
Eccentric anomaly
269.31347°
Mean motion
3.76579 °/min
Orbital period
95.6 mins
BSTAR
0.00015858
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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-2543 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. |
|---|---|---|---|---|---|---|---|
| 6 mins | 2025-12-03 12:27:32.837Z | 275.69° WNW | 2025-12-03 12:30:32.837Z | 332.593° NNW | 25.848° | 2025-12-03 12:33:32.837Z | 29.203° NE |
| 4 mins | 2025-12-03 15:50:32.837Z | 349.604° N | 2025-12-03 15:52:32.837Z | 24.228° NE | 15.578° | 2025-12-03 15:54:32.837Z | 54.095° ENE |
| 6 mins | 2025-12-03 17:29:32.837Z | 323.627° NNW | 2025-12-03 17:32:32.837Z | 47.497° ENE | 37.715° | 2025-12-03 17:35:32.837Z | 108.856° ESE |
| 5 mins | 2025-12-03 19:09:32.837Z | 270.152° WNW | 2025-12-03 19:11:32.837Z | 232.211° WSW | 20.838° | 2025-12-03 19:14:32.837Z | 181.68° SSW |
| 7 mins | 2025-12-04 10:41:32.837Z | 217.544° SW | 2025-12-04 10:44:32.837Z | 133.64° SE | 42.915° | 2025-12-04 10:48:32.837Z | 54.697° ENE |
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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