X Report 15 May 2025
SpaceX successfully launched 28 Starlink satellites from Cape Canaveral, while Starship prepares for its ninth test flight next week.
ONEWEB-0318 (49104)
COSPAR: 2021-075AF | Alt Name: OneWeb SL0318
Image
Additional Sources
Launch Details
Launch Date
August 21, 2021
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-2-1B
Orbital Elements
NORAD ID
49104
International Designator
2021-075AF
Epoch
Sat, 04 Jul 2026 03:38:33 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
87.92°
Right Ascension
332.08°
Eccentricity
Calculating...
Argument of Perigee
90.81°
Period
109.20 min
Mean Motion
13.19 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
ONEWEB-0318
Alternative Name
OneWeb SL0318
Type
Payload
Status
Operational
Owner
ONEWEBN
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 49104U 21075AF 26185.15177964 .00000005 00000-0 -19537-4 0 9990
2 49104 87.9185 332.0832 0001860 90.8133 269.3212 13.18685479239403
Source: Celestrak
Summary
The ONEWEB-0318 satellite, also known as OneWeb SL0318, is a communication satellite built by ONEWUS and launched on August 21, 2021, from the TYSMC launch site using Soyuz-2-1B from LC31. It has an Arrow bus configuration and measures 1.3 meters in length with a diameter of 1 meter and a span of 5 meters. The satellite weighs 148 kilograms at launch and has a dry mass of 140 kilograms. Equipped with a Ku-Band payload, it uses solar arrays and batteries for power and SPT-50 or BHT-350 Hall effect thrusters as its motor. Its expected operational lifetime is seven years, and it serves 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 L9-001
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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