ONEWEB-0303 (49187)

COSPAR: 2021-083B | Alt Name: OneWeb SL0303

Image
ONEWEB-0303 Satellite Image
Additional Sources
Launch Details

Launch Date

September 14, 2021

Launch Pad

LC31

Launch Vehicle

Soyuz-2-1B

Orbital Elements

NORAD ID

49187

International Designator

2021-083B

Epoch

Sat, 04 Jul 2026 03:33:41 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

87.92°

Right Ascension

332.08°

Eccentricity

Calculating...

Argument of Perigee

90.72°

Period

109.20 min

Mean Motion

13.19 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

ONEWEB-0303

Alternative Name

OneWeb SL0303

Type

Payload

Status

Operational

Owner

ONEWEBN

Country

United Kingdom

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 49187U 21083B   26185.14839560  .00000016  00000-0  75241-5 0  9992
2 49187  87.9181 332.0824 0001848  90.7229 269.4114 13.18686973232216

Source: Celestrak

Summary
ONEWEB-0303, also known as OneWeb SL0303, is a communication satellite manufactured by ONEWUS for ONEWBN and launched on September 14, 2021, from the TYMSC launch site using the Soyuz-2-1B launch vehicle. It operates on an Arrow bus configuration with a length of 1.3 meters, diameter of 1 meter, and span of 5 meters. The satellite has a dry mass of 140 kg and a launch mass of 148 kg, featuring a Ku-Band payload for communication purposes. Equipped with solar arrays and batteries for power supply and SPT-50 or BHT-350 Hall effect thrusters for propulsion, the satellite is designed to operate for approximately seven years.
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 L10-032

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.

X Report 26 Aug 2025

X Report 26 Aug 2025

SpaceX's ongoing challenges with the Starship Flight 10 launch are prominent today, as weather and technical issues continue to push back the schedule. Meanwhile, successful cargo missions to the ISS highlight the company's ongoing commitment to space operations.

X Report 24 Sep 2025

X Report 24 Sep 2025

SpaceX prepares for the launch of significant NASA and NOAA missions, while Starship's 11th test flight edges closer.

X Report 14 Jun 2025

X Report 14 Jun 2025

SpaceX achieves significant milestones with the launch of new Starlink satellites and the production of its 10 millionth Starlink kit amidst ongoing challenges with space station delays.

Falcon 9 Returns to Flight, Crew-12 Targets Feb 11 Launch | KeepTrack X Report

Falcon 9 Returns to Flight, Crew-12 Targets Feb 11 Launch | KeepTrack X Report

Falcon 9 returns to flight with Starlink 17-33 mission after brief stand-down. Crew-12 astronaut launch confirmed for Feb 11. SpaceX shifts Dragon launches away from pad 39A.

The Day America Sent Two Secrets to the Sky

The Day America Sent Two Secrets to the Sky

Sixty-five years ago, America launched two very different space missions within hours of each other - one broadcast live to a fascinated nation, the other quietly reaching orbit from a fog-shrouded California launchpad while no one was watching

Space Brief 21 Apr 2025

Space Brief 21 Apr 2025

Today's briefing highlights SpaceX's recent launch of spy satellites, a US Space Force contract for deep space tracking, and advancements in quantum communications in space.

X Report 16 Aug 2025

X Report 16 Aug 2025

SpaceX receives FAA approval for its 10th Starship test flight scheduled for August 24, while also making strides in construction at the Cape and contesting broadband funding in Virginia.

Space Brief 14 Feb 2025

Space Brief 14 Feb 2025

Key developments include Redwire's contract for a US Space Force mission, UK's steps toward its first orbital launch, and a detailed military satellite spotlight.