ONEWEB-0255 (48973)

COSPAR: 2021-060G | Alt Name: OneWeb SL0255

Image

Additional Sources

Launch Details

Launch Date

July 1, 2021

Launch Site

VOSTO

Launch Pad

PU1S

Launch Vehicle

Soyuz-2-1B

Orbital Elements

NORAD ID

48973

International Designator

2021-060G

Epoch

Sat, 04 Jul 2026 01:37:12 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

87.91°

Right Ascension

225.43°

Eccentricity

Calculating...

Argument of Perigee

100.76°

Period

109.37 min

Mean Motion

13.17 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot

3D Visualization

Basic Satellite Info

Name

ONEWEB-0255

Alternative Name

OneWeb SL0255

Type

Payload

Status

Operational

Owner

ONEWEBN

Country

United Kingdom

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs

1 48973U 21060G   26185.06750346  .00000025  00000-0  31026-4 0  9996

2 48973  87.9088 225.4276 0002074 100.7575 259.3789 13.16593567241881

Source: Celestrak

Summary

The Oneweb-0255 satellite, also known as OneWeb SL0255, is a communication satellite owned by ONEWEBN and manufactured by ONEWUS in the UK. Launched on July 1, 2021, from VOSTO launch site using Soyuz-2-1B launch vehicle, it operates with an arrow bus configuration featuring solar arrays and batteries for power supply. The satellite is equipped with a Ku-Band payload and SPT-50 or BHT-350 Hall effect thrusters as its motor system. With dimensions of 1.3 meters in length and 1 meter in diameter, it has a span of 5 meters and a dry mass of 140 kilograms. The launch mass was 148 kilograms, and the satellite is expected to have a lifetime of approximately seven years.

Physical Characteristics

Length

1.3

Diameter

Span

Dry Mass

140

Launch Mass

148

Shape

Trapezoid+2 pan

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

OneWeb L8-012

Purpose

Communication

Mission

Communication

Manufacturer

ONEWUS

Life Expectancy

+ 7 years

Bus

ARROW

Configuration

Arrow bus

Motor

SPT-50 or BHT-350 Hall effect thrusters

Equipment

Ku-Band payload

Power System

solar arrays, batteries

ADCS

Unknown

Transmitter Frequency

Unknown

Map

This tool will help you track the satellite's position and predict its upcoming passes over your location. Simply input the coordinates or click the geolocation button to get started.

Latitude

Longitude

Next Pass

Azimuth Elevation Time (Local)

Start Azimuth

Max Elevation

Stop Azimuth

Time Until

Pass Duration

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

Starbase Pad 2 Preps for Booster 19, Starlink Disrupts Russian Comms | KeepTrack X Report

Starbase Pad 2 passes water-cooled deck test ahead of Booster 19. Starlink restrictions disrupt Russian battlefield communications. California city weighs banning Musk companies.

X Report 5 Dec 2025

SpaceX made significant strides with the launch of 28 Starlink satellites while navigating regulatory challenges regarding rural broadband funding. Additionally, developments on the Crew Dragon mission continue to evolve with a change in cosmonaut assignment.

Space Brief 16 Apr 2025

Today's highlights include Pulsar Fusion's groundbreaking nuclear rocket plans, partnerships for the Haven-1 space station, and a spotlight on military collaboration in quantum technology.

Space Brief 24 Jan 2025

Today's highlights include China's launch of classified TJS-14 satellite, Boeing's defense program losses, and the fourth batch launch of Thousand Sails satellites.

Space Brief 6 Dec 2025

Discover the latest developments in hypersonic missile production, defense innovation strategies, and satellite infrastructure resilience impacting military operations.

Space Brief 3 Dec 2025

Today's brief covers the integration of commercial and military space capabilities, a notable change in Crew 12 mission, advancements in digital training for space operations, and more.

Space Brief 2 Sep 2024

Key topics: SpaceX resumes Falcon 9 launches, mysterious Starliner sounds, and upcoming space policy events. Detailed tracking info for EGYPTSAT A.

Space Brief 23 Sep 2025

Explore the latest in satellite launches and space reconnaissance as Lockheed Martin, SpaceX, and military entities push forward with innovative missions. A new propulsion clean room marks growth in satellite tech.