ONEWEB-0503, 54121
Orbit data source: Space-Track
ONEWEB-0503, 54121 is a payload satellite owned by One Web (NAA) (UK) in LEO that was launched on Sat, 22 Oct 2022 UTC via a LVM3 launch vehicle from the Sirharikota (SRI). 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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54121 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-0503
1 54121U 22138J 26171.40102700 .00000080 00000-0 16778-3 0 9990
2 54121 87.9185 304.3205 0001916 91.3899 268.7453 13.19725456177245Epoch: 2026-06-20T09:37Z
TLE epoch observation values (Epoch: 2026-06-20T09:37:28.732Z)
Latitude
-0.00006°
Longitude
-108.6654°
Altitude
1,188.702 km
Speed
7.259 km/s
True Right ascension
20h 17m 16s
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
21:29:41
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,184.323 km
Perigee altitude
1,181.426 km
Semi-major axis
7,561.012 km
Eccentricity
0.00019
Inclination
87.9185°
RAAN
304.3205°
Arg. of periapsis
91.3899°
True anomaly
268.72335°
Mean anomaly
268.7453°
Eccentric anomaly
268.73432°
Mean motion
3.30121 °/min
Orbital period
109.05 mins
BSTAR
0.00016778
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Other satellites on launch #138 in the year 2022 (2022-10-22 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-0503 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. |
|---|---|---|---|---|---|---|---|
| 9 mins | 2026-06-22 10:53:40.852Z | 246.101° WSW | 2026-06-22 10:57:40.852Z | 281.629° WNW | 17.615° | 2026-06-22 11:02:40.852Z | 326.806° NNW |
| 12 mins | 2026-06-22 20:27:40.852Z | 11.337° NNE | 2026-06-22 20:33:40.852Z | 91.851° ESE | 39.436° | 2026-06-22 20:39:40.852Z | 160.794° S |
| 10 mins | 2026-06-22 22:17:40.852Z | 328.692° NNW | 2026-06-22 22:21:40.852Z | 289.576° WNW | 23.226° | 2026-06-22 22:27:40.852Z | 231.88° WSW |
| 12 mins | 2026-06-23 08:41:40.852Z | 158.627° S | 2026-06-23 08:47:40.852Z | 79.047° E | 40.179° | 2026-06-23 08:53:40.852Z | 10.361° NNE |
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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