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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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: 1 day ago
TLE from 1 day ago
0 STARLINK-2543
1 48278U 21036C 26091.79939449 .00007752 00000-0 27355-3 0 9999
2 48278 53.1535 277.0585 0001048 98.1756 261.9364 15.30201629272658Epoch: 2026-04-01T19:11Z
TLE epoch observation values (Epoch: 2026-04-01T19:11:07.683Z)
Latitude
-0.00001°
Longitude
159.11944°
Altitude
476.21 km
Speed
7.629 km/s
True Right ascension
18h 28m 14s
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
02:26:18
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
476.186 km
Perigee altitude
474.749 km
Semi-major axis
6,853.605 km
Eccentricity
0.0001
Inclination
53.1535°
RAAN
277.0585°
Arg. of periapsis
98.1756°
True anomaly
261.92451°
Mean anomaly
261.9364°
Eccentric anomaly
261.93045°
Mean motion
3.82529 °/min
Orbital period
94.11 mins
BSTAR
0.00027355
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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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2026-04-02 20:43:57.963Z | 334.544° NNW | 2026-04-02 20:45:57.963Z | 13.86° NNE | 24.721° | 2026-04-02 20:48:57.963Z | 84.271° E |
| 4 mins | 2026-04-02 22:22:57.963Z | 275.536° WNW | 2026-04-02 22:23:57.963Z | 246.646° WSW | 31.016° | 2026-04-02 22:26:57.963Z | 163.118° S |
| 4 mins | 2026-04-03 13:40:57.963Z | 161.032° S | 2026-04-03 13:41:57.963Z | 137.942° SSE | 21.248° | 2026-04-03 13:44:57.963Z | 78.663° E |
| 5 mins | 2026-04-03 15:17:57.963Z | 265.557° W | 2026-04-03 15:19:57.963Z | 324.614° NNW | 33.573° | 2026-04-03 15:22:57.963Z | 35.446° NE |
| 5 mins | 2026-04-03 20:14:57.963Z | 343.276° N | 2026-04-03 20:16:57.963Z | 30.003° NE | 23.464° | 2026-04-03 20:19:57.963Z | 85.985° E |
Co-orbital & Co-planar RSOs
Thresholds — Semi-major Axis: ±100 km, RAAN: ±3°, Inclination: ±5°
TCA is derived from TLE conjunctions
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CAUTION: Conjunctions in this section are generated from low-fidelity TLE screenings
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