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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Edit Public Description
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: 9 hours ago
TLE from 9 hours ago
0 ONEWEB-0257
1 48975U 21060J 25349.79808994 -.00000089 00000-0 -26604-3 0 9999
2 48975 87.9047 265.2870 0001868 71.1714 288.9620 13.16596117215456Epoch: 2025-12-15T19:09Z
TLE epoch observation values (Epoch: 2025-12-15T19:09:14.970Z)
Latitude
0.00002°
Longitude
-106.71686°
Altitude
1,200.187 km
Speed
7.254 km/s
True Right ascension
17h 41m 08s
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
03:06:11
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,196.275 km
Perigee altitude
1,193.445 km
Semi-major axis
7,572.997 km
Eccentricity
0.00019
Inclination
87.9047°
RAAN
265.287°
Arg. of periapsis
71.1714°
True anomaly
288.94175°
Mean anomaly
288.962°
Eccentric anomaly
288.95188°
Mean motion
3.29338 °/min
Orbital period
109.31 mins
BSTAR
-0.00026604
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Other satellites on launch #60 in the year 2021 (2021-07-01 UTC)
Did you know?
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. |
|---|---|---|---|---|---|---|---|
| 5 mins | 2025-12-16 04:55:21.929Z | 49.629° ENE | 2025-12-16 04:57:21.929Z | 66.612° ENE | 12.903° | 2025-12-16 05:00:21.929Z | 92.447° ESE |
| 13 mins | 2025-12-16 06:42:21.929Z | 1.441° NNE | 2025-12-16 06:48:21.929Z | 85.077° E | 44.828° | 2025-12-16 06:55:21.929Z | 178.393° S |
| 6 mins | 2025-12-16 08:34:21.929Z | 310.826° NW | 2025-12-16 08:36:21.929Z | 292.592° NW | 15.663° | 2025-12-16 08:40:21.929Z | 256.815° W |
| 5 mins | 2025-12-16 17:13:21.929Z | 91.484° ESE | 2025-12-16 17:15:21.929Z | 73.867° E | 14.048° | 2025-12-16 17:18:21.929Z | 47.521° ENE |
| 12 mins | 2025-12-16 18:58:21.929Z | 177.775° S | 2025-12-16 19:04:21.929Z | 9.868° NNE | 44.766° | 2025-12-16 19:10:21.929Z | 0.932° NNE |
| 5 mins | 2025-12-16 20:52:21.929Z | 269.128° W | 2025-12-16 20:54:21.929Z | 287.303° WNW | 14.588° | 2025-12-16 20:57:21.929Z | 313.864° NW |
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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