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: 7 hours ago
TLE from 7 hours ago
0 STARLINK-2543
1 48278U 21036C 26036.40138276 -.00000825 00000-0 -36516-4 0 9991
2 48278 53.0557 171.6527 0001101 93.7241 266.3874 15.06410899264218Epoch: 2026-02-05T09:37Z
TLE epoch observation values (Epoch: 2026-02-05T09:37:59.470Z)
Latitude
-0.00001°
Longitude
-108.39924°
Altitude
548.106 km
Speed
7.589 km/s
True Right ascension
11h 26m 36s
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
18:29:45
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
548.211 km
Perigee altitude
546.686 km
Semi-major axis
6,925.586 km
Eccentricity
0.00011
Inclination
53.0557°
RAAN
171.6527°
Arg. of periapsis
93.7241°
True anomaly
266.37481°
Mean anomaly
266.3874°
Eccentric anomaly
266.3811°
Mean motion
3.76581 °/min
Orbital period
95.6 mins
BSTAR
-0.000036516
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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 | 2026-02-05 18:05:53.606Z | 331.558° NNW | 2026-02-05 18:07:53.606Z | 34.03° NE | 37.187° | 2026-02-05 18:10:53.606Z | 106.025° ESE |
| 4 mins | 2026-02-05 19:45:53.606Z | 258.803° W | 2026-02-05 19:46:53.606Z | 237.73° WSW | 21.518° | 2026-02-05 19:49:53.606Z | 182.825° SSW |
| 6 mins | 2026-02-06 11:17:53.606Z | 212.126° SW | 2026-02-06 11:19:53.606Z | 156.58° SSE | 41.917° | 2026-02-06 11:23:53.606Z | 55.875° ENE |
| 5 mins | 2026-02-06 12:57:53.606Z | 293.64° NW | 2026-02-06 12:59:53.606Z | 334.683° NNW | 22.888° | 2026-02-06 13:02:53.606Z | 27.872° NE |
| 4 mins | 2026-02-06 16:19:53.606Z | 349.848° N | 2026-02-06 16:21:53.606Z | 26.185° NE | 17.055° | 2026-02-06 16:23:53.606Z | 57.741° 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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