Space Brief 25 Jun 2025
Today's highlights include the launch of a U.S. military satellite via SpaceX, a new French defense agreement for satellite services, and the Missile Defense Agency's successful ICBM target tracking with long-range radar.
ONEWEB-0186 (48229)
COSPAR: 2021-031V | Alt Name: OneWeb SL0186
Image
Additional Sources
Launch Details
Launch Date
April 25, 2021
Launch Site
VOSTO
Launch Pad
PU1S
Launch Vehicle
Soyuz-2-1B
Orbital Elements
NORAD ID
48229
International Designator
2021-031V
Epoch
Sat, 04 Jul 2026 05:50:50 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
87.90°
Right Ascension
286.30°
Eccentricity
Calculating...
Argument of Perigee
99.46°
Period
109.55 min
Mean Motion
13.15 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
ONEWEB-0186
Alternative Name
OneWeb SL0186
Type
Payload
Status
Operational
Owner
ONEWEBN
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 48229U 21031V 26185.24364395 -.00000107 00000-0 -32208-3 0 9998
2 48229 87.8984 286.2994 0002089 99.4579 260.6787 13.14502786250621
Source: Celestrak
Summary
The ONEWEB-0186 satellite, also known as OneWeb SL0186, is a communication satellite operated by ONEWEBN and manufactured by ONEWUS. It was launched on April 25, 2021, from the VOSTO launch site using a Soyuz-2-1B launch vehicle. The satellite has dimensions of 1.3 meters in length, 1 meter in diameter, and spans 5 meters when deployed. Its dry mass is 140 kilograms, and it had a launch mass of 148 kilograms. Equipped with a Ku-Band payload and solar arrays for power, the satellite uses SPT-50 or BHT-350 Hall effect thrusters as its motor. The satellite's shape is described as Trapezoid+2 pan and has a mission lifetime of 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 L6-019
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
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