ONEWEB-0257, 48975
Orbit data source: Space-Track
ONEWEB-0257, 48975 is a payload satellite owned by One Web (NAA) (UK) in LEO that was launched on Thu, 01 Jul 2021 UTC via a SOYUZ-2-1B launch vehicle from the Vostochny Cosmodrome (VOSTO). 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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48975 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-0257
1 48975U 21060J 26171.44663072 .00000018 00000-0 14239-4 0 9993
2 48975 87.9095 228.1239 0001888 98.4262 261.7083 13.16594932240013Epoch: 2026-06-20T10:43Z
TLE epoch observation values (Epoch: 2026-06-20T10:43:08.894Z)
Latitude
-0.00001°
Longitude
158.67571°
Altitude
1,200.858 km
Speed
7.253 km/s
True Right ascension
15h 12m 29s
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
21:36:53
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,196.294 km
Perigee altitude
1,193.435 km
Semi-major axis
7,573.001 km
Eccentricity
0.00019
Inclination
87.9095°
RAAN
228.1239°
Arg. of periapsis
98.4262°
True anomaly
261.68689°
Mean anomaly
261.7083°
Eccentric anomaly
261.6976°
Mean motion
3.29337 °/min
Orbital period
109.31 mins
BSTAR
0.000014239
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Other satellites on launch #60 in the year 2021 (2021-07-01 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-0257 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 14:24:51.460Z | 34.443° NE | 2026-06-22 14:28:51.460Z | 71.46° E | 19.44° | 2026-06-22 14:33:51.460Z | 118.19° SE |
| 12 mins | 2026-06-22 16:13:51.460Z | 351.71° N | 2026-06-22 16:18:51.460Z | 294.391° NW | 42.619° | 2026-06-22 16:25:51.460Z | 193.338° SSW |
| 8 mins | 2026-06-23 02:42:51.460Z | 109.177° ESE | 2026-06-23 02:45:51.460Z | 78.888° E | 20.742° | 2026-06-23 02:50:51.460Z | 31.556° NE |
| 13 mins | 2026-06-23 04:28:51.460Z | 193.894° SSW | 2026-06-23 04:34:51.460Z | 268.357° W | 41.935° | 2026-06-23 04:41:51.460Z | 353.985° N |
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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