ONEWEB-0259, 48977
Orbit data source: Space-Track
ONEWEB-0259, 48977 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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48977 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-0259
1 48977U 21060L 26171.44188464 .00000034 00000-0 54330-4 0 9996
2 48977 87.9093 228.1360 0002071 102.5331 257.6032 13.16595130240050Epoch: 2026-06-20T10:36Z
TLE epoch observation values (Epoch: 2026-06-20T10:36:18.832Z)
Latitude
-0.00001°
Longitude
160.40108°
Altitude
1,200.987 km
Speed
7.253 km/s
True Right ascension
15h 12m 32s
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
21:24:53
Azimuth
Unknown
Elevation
Unknown
Doppler factor
Unknown
Orbital elements
Apogee altitude
1,196.432 km
Perigee altitude
1,193.295 km
Semi-major axis
7,573.001 km
Eccentricity
0.00021
Inclination
87.9093°
RAAN
228.136°
Arg. of periapsis
102.5331°
True anomaly
257.58002°
Mean anomaly
257.6032°
Eccentric anomaly
257.59161°
Mean motion
3.29337 °/min
Orbital period
109.31 mins
BSTAR
0.00005433
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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-0259 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 14:17:53.044Z | 34.987° NE | 2026-06-22 14:21:53.044Z | 70.224° E | 17.424° | 2026-06-22 14:26:53.044Z | 114.804° SE |
| 12 mins | 2026-06-22 16:06:53.044Z | 354.777° N | 2026-06-22 16:12:53.044Z | 240.14° WSW | 43.814° | 2026-06-22 16:18:53.044Z | 189.112° SSW |
| 8 mins | 2026-06-23 02:35:53.044Z | 108.03° ESE | 2026-06-23 02:39:53.044Z | 69.373° E | 18.644° | 2026-06-23 02:43:53.044Z | 33.98° NE |
| 12 mins | 2026-06-23 04:22:53.044Z | 190.83° SSW | 2026-06-23 04:27:53.044Z | 257.884° W | 43.38° | 2026-06-23 04:34:53.044Z | 355.812° 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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