Space Brief 30 May 2025
Today's brief highlights significant advancements in satellite launches, new defense contracts, and technological integrations between major firms in the space sector.
ONEWEB-0275 (48993)
COSPAR: 2021-060AC | Alt Name: OneWeb SL0275
Image
Additional Sources
Launch Details
Launch Date
July 1, 2021
Launch Site
VOSTO
Launch Pad
PU1S
Launch Vehicle
Soyuz-2-1B
Orbital Elements
NORAD ID
48993
International Designator
2021-060AC
Epoch
Sat, 04 Jul 2026 02:25:05 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
87.91°
Right Ascension
225.42°
Eccentricity
Calculating...
Argument of Perigee
96.46°
Period
109.37 min
Mean Motion
13.17 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-0275
Alternative Name
OneWeb SL0275
Type
Payload
Status
Operational
Owner
ONEWEBN
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 48993U 21060AC 26185.10075324 .00000187 00000-0 45451-3 0 9994
2 48993 87.9086 225.4166 0001950 96.4601 263.6752 13.16595535241786
Source: Celestrak
Summary
The Oneweb-0275 satellite, also known as OneWeb SL0275, was launched on July 1, 2021, from the Vostochny Cosmodrome using a Soyuz-2-1B launch vehicle. This UK-based communication satellite uses an Arrow bus configuration and measures 1.3 meters in length with a diameter of 1 meter and a span of 5 meters. It has a dry mass of 140 kilograms and a launch mass of 148 kilograms, equipped with solar arrays and batteries for power. The satellite is part of the OneWeb constellation and carries a Ku-band payload, utilizing SPT-50 or BHT-350 Hall effect thrusters as its motor system. Its primary mission is to provide communication services with an expected operational lifetime of 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 L8-032
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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