ONEWEB-0398, 50478
Orbit data source: Space-Track
ONEWEB-0398, 50478 is a payload satellite owned by One Web (NAA) (UK) in LEO that was launched on Mon, 27 Dec 2021 UTC via a SOYUZ-2-1B launch vehicle from the Tyuratam Missile And Space Complex (TTMTR). 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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50478 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-0398
1 50478U 21132K 26171.03411131 .00000583 00000-0 16079-2 0 9995
2 50478 87.8891 20.4912 0002002 94.7119 265.4238 13.11415945215989Epoch: 2026-06-20T00:49Z
TLE epoch observation values (Epoch: 2026-06-20T00:49:07.217Z)
Latitude
0.00004°
Longitude
99.9566°
Altitude
1,220.697 km
Speed
7.244 km/s
True Right ascension
01h 21m 57s
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
21:34:23
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,216.325 km
Perigee altitude
1,213.285 km
Semi-major axis
7,592.942 km
Eccentricity
0.0002
Inclination
87.8891°
RAAN
20.4912°
Arg. of periapsis
94.7119°
True anomaly
265.40093°
Mean anomaly
265.4238°
Eccentric anomaly
265.41237°
Mean motion
3.28041 °/min
Orbital period
109.74 mins
BSTAR
0.0016079
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Other satellites on launch #132 in the year 2021 (2021-12-27 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-0398 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. |
|---|---|---|---|---|---|---|---|
| 12 mins | 2026-06-22 13:21:21.604Z | 140.718° SSE | 2026-06-22 13:27:21.604Z | 77.431° E | 30.824° | 2026-06-22 13:33:21.604Z | 18.459° NNE |
| 12 mins | 2026-06-22 15:11:21.604Z | 215.12° SW | 2026-06-22 15:17:21.604Z | 285.352° WNW | 32.404° | 2026-06-22 15:23:21.604Z | 344.398° N |
| 11 mins | 2026-06-23 00:51:21.604Z | 27.714° NE | 2026-06-23 00:56:21.604Z | 80.385° E | 26.054° | 2026-06-23 01:02:21.604Z | 136.528° SSE |
| 11 mins | 2026-06-23 02:41:21.604Z | 342.359° N | 2026-06-23 02:46:21.604Z | 276.8° WNW | 37.321° | 2026-06-23 02:52:21.604Z | 207.408° SW |
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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