ONEWEB-0543, 55143
Orbit data source: Space-Track
ONEWEB-0543, 55143 is a payload satellite owned by One Web (NAA) (UK) in LEO that was launched on Tue, 10 Jan 2023 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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55143 intel report (Beta)
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Identifier
Orbit
Country
UKRelated business
Manufacturer
One Web
Mission
Operational Commercial Communications
Bus & Motor
ARROW, Unknown motor
Mass
148 kg wet, ~140 kg dry
Launch date (UTC)
Launch vehicle
Launch site
Object type
Shape & HBR
Trap Box + 2 Pan, 6.7 m
Radar Cross Section
3.464 m², Large (>1 m²)
Expand to show TLE details & historyLast TLE update: 2 days ago
TLE from 2 days ago
0 ONEWEB-0543
1 55143U 23004D 26171.42656328 .00000057 00000-0 11249-3 0 9992
2 55143 87.9160 334.8247 0001637 95.0837 265.0482 13.18685541170121Epoch: 2026-06-20T10:14Z
TLE epoch observation values (Epoch: 2026-06-20T10:14:15.067Z)
Latitude
-0.00002°
Longitude
-87.37943°
Altitude
1,192.752 km
Speed
7.257 km/s
True Right ascension
22h 19m 17s
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
21:31:52
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,188.091 km
Perigee altitude
1,185.614 km
Semi-major axis
7,564.989 km
Eccentricity
0.00016
Inclination
87.916°
RAAN
334.8247°
Arg. of periapsis
95.0837°
True anomaly
265.02951°
Mean anomaly
265.0482°
Eccentric anomaly
265.03886°
Mean motion
3.29861 °/min
Orbital period
109.14 mins
BSTAR
0.00011249
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Other satellites on launch #4 in the year 2023 (2023-01-10 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.ONEWEB-0543 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. |
|---|---|---|---|---|---|---|---|
| 13 mins | 2026-06-22 11:29:51.236Z | 187.462° SSW | 2026-06-22 11:36:51.236Z | 299.287° NW | 43.442° | 2026-06-22 11:42:51.236Z | 355.887° N |
| 5 mins | 2026-06-22 21:09:51.236Z | 52.139° ENE | 2026-06-22 21:11:51.236Z | 69.588° E | 13.211° | 2026-06-22 21:14:51.236Z | 95.409° ESE |
| 12 mins | 2026-06-22 22:56:51.236Z | 1.277° NNE | 2026-06-22 23:02:51.236Z | 155.217° SSE | 44.456° | 2026-06-22 23:08:51.236Z | 178.996° S |
| 6 mins | 2026-06-23 00:47:51.236Z | 313.266° NW | 2026-06-23 00:50:51.236Z | 285.963° WNW | 15.315° | 2026-06-23 00:53:51.236Z | 259.422° W |
| 5 mins | 2026-06-23 09:26:51.236Z | 87.316° E | 2026-06-23 09:28:51.236Z | 69.193° E | 14.045° | 2026-06-23 09:31:51.236Z | 43.564° NE |
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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