ONEWEB-0125 (47271)

COSPAR: 2020-100P | Alt Name: OneWeb SL0142

Image
ONEWEB-0125 Satellite Image
Additional Sources
Launch Details

Launch Date

December 18, 2020

Launch Site

VOSTO

Launch Pad

PU1S

Launch Vehicle

Soyuz-2-1B

Orbital Elements

NORAD ID

47271

International Designator

2020-100P

Epoch

Sat, 04 Jul 2026 04:12:43 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

87.90°

Right Ascension

347.28°

Eccentricity

Calculating...

Argument of Perigee

84.58°

Period

109.72 min

Mean Motion

13.12 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

ONEWEB-0125

Alternative Name

OneWeb SL0142

Type

Payload

Status

Operational

Owner

ONEWEB

Country

United Kingdom

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 47271U 20100P   26185.17550498 -.00000395  00000-0 -11331-2 0  9995
2 47271  87.8960 347.2768 0001736  84.5805 275.5522 13.12442725266862

Source: Celestrak

Summary
The ONEWEB-0125 satellite, also known as OneWeb SL0142, was manufactured by Onewus and launched on December 18, 2020, from Vosto using a Soyuz-2-1B launch vehicle at PU1S. It uses the Arrow bus configuration and is designed for communication purposes with a Ku-Band payload. The satellite measures 1.3 meters in length, has a diameter of 1 meter, and spans 5 meters when its solar arrays are deployed. Its dry mass is 140 kg, and it had a launch mass of 148 kg. Equipped with SPT-50 or BHT-350 Hall effect thrusters for propulsion, the satellite relies on solar power from its solar arrays and batteries. The expected operational lifetime is approximately seven years. Owned by OneWeb, this trapezoid-shaped satellite with two panels operates in a low Earth orbit to provide communication services.
Physical Characteristics

Length

1.3

Diameter

1

Span

5

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 L4-014

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.
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.

Space Domain Awareness (SDA)

Space Domain Awareness (SDA)

The evolution from simply tracking objects in orbit to understanding the full strategic picture of who is doing what in space, and why

Space Brief 4 Dec 2025

Space Brief 4 Dec 2025

Today's brief covers SpaceX's Starship launch approval, Antares' nuclear funding, and shifts in global space defense strategies.

Katalyst Link Clears Tests for $500M SPARCS Rescue | KeepTrack Space Brief

Katalyst Link Clears Tests for $500M SPARCS Rescue | KeepTrack Space Brief

Katalyst's Link spacecraft passes key testing milestone ahead of June 2026 launch to rescue NASA's $500M SPARCS telescope. In-space servicing mission will create trackable conjunction risk during approach and docking phase.

Two-Line Element Set (TLE)

Two-Line Element Set (TLE)

The compact data format that describes every tracked satellite orbit in just two lines of text, and how to read it

Crew-11 Returns to Earth After Historic ISS Medical Evacuation | KeepTrack X Report

Crew-11 Returns to Earth After Historic ISS Medical Evacuation | KeepTrack X Report

SpaceX Crew-11 mission returns safely to Earth after first-ever medical evacuation from ISS. Crew Dragon splashes down in Pacific Ocean off California coast. Mission ended early due to health concern.

The Space Station Space Race

The Space Station Space Race

As the International Space Station nears retirement, private companies are stepping up to fill the void with their own space stations. Discover the key players and the potential impact on space exploration.

Falcon Heavy Returns After 18-Month Hiatus for ViaSat-3 | KeepTrack X Report

Falcon Heavy Returns After 18-Month Hiatus for ViaSat-3 | KeepTrack X Report

SpaceX's Falcon Heavy lifts off for the 12th time after 18 months grounded, delivering the final ViaSat-3 satellite from LC-39A at 10:21 a.m. EDT.

Space Brief 21 Jun 2025

Space Brief 21 Jun 2025

Today's brief highlights a Pentagon satellite network challenge, the expanding use of AI in military strategy, and advancements in commercial launch vehicle production.