ONEWEB-0541, 55142
Orbit data source: Space-Track
ONEWEB-0541, 55142 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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55142 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-0541
1 55142U 23004C 26171.31045365 -.00000626 00000-0 -18020-2 0 9999
2 55142 87.8896 20.4363 0001953 90.4741 269.6611 13.11417269166353Epoch: 2026-06-20T07:27Z
TLE epoch observation values (Epoch: 2026-06-20T07:27:03.195Z)
Latitude
0.00001°
Longitude
0.14608°
Altitude
1,220.58 km
Speed
7.244 km/s
True Right ascension
01h 21m 44s
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
23:07:46
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,216.283 km
Perigee altitude
1,213.317 km
Semi-major axis
7,592.937 km
Eccentricity
0.0002
Inclination
87.8896°
RAAN
20.4363°
Arg. of periapsis
90.4741°
True anomaly
269.63872°
Mean anomaly
269.6611°
Eccentric anomaly
269.64991°
Mean motion
3.28041 °/min
Orbital period
109.74 mins
BSTAR
-0.001802
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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-0541 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. |
|---|---|---|---|---|---|---|---|
| 8 mins | 2026-06-22 12:42:29.358Z | 107.047° ESE | 2026-06-22 12:46:29.358Z | 70.579° E | 17.515° | 2026-06-22 12:50:29.358Z | 35.803° NE |
| 13 mins | 2026-06-22 14:29:29.358Z | 186.49° SSW | 2026-06-22 14:35:29.358Z | 292.776° NW | 44.151° | 2026-06-22 14:42:29.358Z | 357.733° N |
| 6 mins | 2026-06-23 00:11:29.358Z | 49.249° ENE | 2026-06-23 00:14:29.358Z | 75.311° E | 13.663° | 2026-06-23 00:17:29.358Z | 100.141° ESE |
| 12 mins | 2026-06-23 01:59:29.358Z | 0.884° NNE | 2026-06-23 02:04:29.358Z | 19.439° NNE | 44.519° | 2026-06-23 02:11:29.358Z | 179.596° S |
| 6 mins | 2026-06-23 03:51:29.358Z | 309.433° NW | 2026-06-23 03:53:29.358Z | 291.441° WNW | 15.298° | 2026-06-23 03:57:29.358Z | 256.832° W |
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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