Space Brief 1 Oct 2025
Today's brief covers an increase in Chinese satellite launches, the operational status of the Space Force's ATLAS software, and a significant fundraising event in the defense sector.
ONEWEB-0155 (48057)
COSPAR: 2021-025R | Alt Name: OneWeb SL0155
Image
Additional Sources
Launch Details
Launch Date
March 25, 2021
Launch Site
VOSTO
Launch Pad
PU1S
Launch Vehicle
Soyuz-2-1B
Orbital Elements
NORAD ID
48057
International Designator
2021-025R
Epoch
Sat, 04 Jul 2026 02:59:11 GMT
Apogee
Calculating...
Perigee
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Inclination
87.89°
Right Ascension
316.85°
Eccentricity
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Argument of Perigee
100.75°
Period
109.64 min
Mean Motion
13.13 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-0155
Alternative Name
OneWeb SL0155
Type
Payload
Status
Operational
Owner
ONEWEBN
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 48057U 21025R 26185.12443884 -.00004714 00000-0 -12956-1 0 9992
2 48057 87.8911 316.8497 0002426 100.7460 259.3942 13.13434542255905
Source: Celestrak
Summary
The ONEWEB-0155 satellite, also known as OneWeb SL0155, was launched on March 25, 2021, from the VOSTO launch site using a Soyuz-2-1B rocket from PU1S launch pad. It is manufactured by Onewus and operated for communication purposes under the ownership of ONEWBN. The satellite features an Arrow bus configuration with dimensions of 1.3 meters in length, 1 meter in diameter, and spans 5 meters. Equipped with a Ku-Band payload and solar arrays along with batteries for power, it has a dry mass of 140 kilograms and a launch mass of 148 kilograms. Its propulsion system uses SPT-50 or BHT-350 Hall effect thrusters. The satellite's operational lifetime is estimated at 7 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 L5-005
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
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