X Report 10 Sep 2025
SpaceX makes strides with United States national security satellites, securing substantial spectrum for Starlink's direct-to-cell services, and preparing for future Starship developments.
ONEWEB-0400 (50480)
COSPAR: 2021-132M | Alt Name: OneWeb SL0400
Image
Additional Sources
Launch Details
Launch Date
December 27, 2021
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-2-1B
Orbital Elements
NORAD ID
50480
International Designator
2021-132M
Epoch
Sun, 19 Jul 2026 18:53:50 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
87.92°
Right Ascension
328.96°
Eccentricity
Calculating...
Argument of Perigee
96.75°
Period
109.20 min
Mean Motion
13.19 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Explore in the Catalog
Basic Satellite Info
Name
ONEWEB-0400
Alternative Name
OneWeb SL0400
Type
Payload
Status
Operational
Owner
ONEWEBN
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 50480U 21132M 26200.78739551 .00000042 00000+0 74000-4 0 9991
2 50480 87.9200 328.9637 0002037 96.7504 263.3860 13.18685461225905
Source: Celestrak
Summary
The ONEWEB-0400 satellite, also known as OneWeb SL0400, was launched on December 27, 2021, from the Taiyuan Satellite Launch Center (TYMSC) using a Soyuz-2-1B launch vehicle at LC31. It is owned by ONEWEBN and manufactured by ONEWUS in the UK. The satellite has an arrow bus configuration with dimensions of 1.3 meters in length, 1 meter in diameter, and a span of 5 meters. It features a Ku-Band payload for communication purposes and uses solar arrays and batteries for power. Its propulsion system consists of SPT-50 or BHT-350 Hall effect thrusters. The satellite weighs 148 kg at launch with a dry mass of 140 kg and is expected to have a lifetime of seven years in orbit.
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 L12-005
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
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 24 Dec 2025
SpaceX gears up for significant 2026 launches while a Starlink satellite anomaly provides insights into its operations.
Space Brief 21 Jan 2025
Today's Space Brief highlights a SpaceX launch of Starlink satellites, international efforts to tackle space debris, and innovative lunar power solutions from China.
X Report 15 Dec 2025
SpaceX made significant strides in satellite deployment with successful launches of 27 and 29 Starlink satellites, marking both a milestone in landings and ongoing expansion of the Starlink constellation.
Space Brief 7 Jul 2025
Today's key topics include the halting of the U.S. Air Force's rocket landing pad plans, the Space Force's shift to a flexible satellite strategy, delays in Australia's Eris 1 rocket launch, and the controversial cut of satellite sea-ice data to climate scientists.
Space Brief 23 Oct 2024
Today's brief shines a light on surging space debris due to a new satellite breakup, SpaceX's continuous Starlink expansions, and notable legal support for Elon Musk's launch endeavors.
Space Brief 30 Aug 2025
Today's briefing covers the latest satellite communications advancements, a secretive military launch by SpaceX, and new space defense organizational structures.
Space Brief 12 Mar 2025
Today's space news highlights include the proposed budget expansion for the U.S. Space Force, a new CubeSat milestone for ESA's asteroid mission, and challenges with SpaceX's Starlink launch. Also, we celebrate the one-year anniversary of the Aries SN1 satellite in orbit.