Space Brief 20 Aug 2025
Today's Space Brief highlights Globalstar's new military focus, technological innovations in the Army's tactical systems, and a deeper look at key military satellite communications developments.
ONEWEB-0308 (49094)
COSPAR: 2021-075V | Alt Name: OneWeb SL0308
Image
Additional Sources
Launch Details
Launch Date
August 21, 2021
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-2-1B
Orbital Elements
NORAD ID
49094
International Designator
2021-075V
Epoch
Sat, 04 Jul 2026 03:28:49 GMT
Apogee
Calculating...
Perigee
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Inclination
87.90°
Right Ascension
347.29°
Eccentricity
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Argument of Perigee
94.28°
Period
109.72 min
Mean Motion
13.12 rev/day
Latitude
Calculating...
Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
Basic Satellite Info
Name
ONEWEB-0308
Alternative Name
OneWeb SL0308
Type
Payload
Status
Operational
Owner
ONEWEBN
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 49094U 21075V 26185.14501457 .00000206 00000-0 53800-3 0 9997
2 49094 87.8960 347.2868 0001829 94.2796 265.8541 13.12440941236787
Source: Celestrak
Summary
ONEWEB-0308, also known as OneWeb SL0308, is a communication satellite manufactured by ONEWUS and owned by ONEWEBN. Launched on August 21, 2021, from the TYMSC launch site using Soyuz-2-1B at LC31, this satellite uses an Arrow bus configuration with dimensions of 1.3 meters in length, a diameter of 1 meter, and a span of 5 meters. It has a dry mass of 140 kg and was launched with a total mass of 148 kg. Equipped with a Ku-Band payload and powered by solar arrays and batteries, the satellite is expected to have a lifetime of 7 years. Its propulsion system includes SPT-50 or BHT-350 Hall effect thrusters. The shape of the satellite is described as Trapezoid+2 pan, and it serves communication purposes as part of its mission.
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 L9-007
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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