Falcon Heavy Launches ViaSat-3 F3, Space Brief 27 Apr 2026
Falcon Heavy launched ViaSat-3 F3 on April 27, its 12th flight, with the first dual landing zone recovery. Plus Soyuz-5's demo flight nears at Baikonur.
ONEWEB-0138 (47284)
COSPAR: 2020-100AC | Alt Name: OneWeb SL0129
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
47284
International Designator
2020-100AC
Epoch
Sat, 04 Jul 2026 04:54:12 GMT
Apogee
Calculating...
Perigee
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Inclination
87.90°
Right Ascension
347.28°
Eccentricity
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Argument of Perigee
99.97°
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-0138
Alternative Name
OneWeb SL0129
Type
Payload
Status
Operational
Owner
ONEWEB
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 47284U 20100AC 26185.20431599 .00000471 00000-0 12747-2 0 9998
2 47284 87.8959 347.2813 0001950 99.9718 260.1631 13.12442450266884
Source: Celestrak
Summary
The ONEWEB-0138 satellite, also known as OneWeb SL0129, was launched on December 18, 2020, from Vostochny Cosmodrome using a Soyuz-2-1B launch vehicle. This UK-owned communication satellite has an arrow bus configuration and measures 1.3 meters in length with a diameter of 1 meter and a span of 5 meters. It carries a Ku-Band payload for its mission, powered by solar arrays and batteries. The dry mass is 140 kg while the launch mass was 148 kg. Equipped with SPT-50 or BHT-350 Hall effect thrusters, this satellite has an expected lifetime of seven years and is part of Oneweb's constellation for communication purposes.
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 L4-027
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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