X Report 27 May 2025
Today marks a significant day for SpaceX as the company prepares for the 9th test flight of its Starship-Super Heavy rocket, alongside a successful launch of 24 Starlink satellites to polar orbit.
ONEWEB-0309 (49095)
COSPAR: 2021-075W | Alt Name: OneWeb SL0309
Image
Additional Sources
Launch Details
Launch Date
August 21, 2021
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-2-1B
Orbital Elements
NORAD ID
49095
International Designator
2021-075W
Epoch
Sat, 04 Jul 2026 06:00:52 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
87.91°
Right Ascension
2.47°
Eccentricity
Calculating...
Argument of Perigee
97.82°
Period
109.29 min
Mean Motion
13.18 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
ONEWEB-0309
Alternative Name
OneWeb SL0309
Type
Payload
Status
Operational
Owner
ONEWEBN
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 49095U 21075W 26185.25060424 .00000099 00000-0 22210-3 0 9995
2 49095 87.9137 2.4679 0002287 97.8216 262.3175 13.17650042235829
Source: Celestrak
Summary
The satellite ONEWEB-0309, also known as OneWeb SL0309, was launched on August 21, 2021, from the TYMSC site using a Soyuz-2-1B launch vehicle at LC31. It is owned by ONEWEBN and manufactured by ONEWUS, designed for communication purposes. The satellite has dimensions of 1.3 meters in length, 1 meter in diameter, and a span of 5 meters. Its dry mass is 140 kg with a launch mass of 148 kg. It uses solar arrays and batteries for power supply and is equipped with a Ku-Band payload and SPT-50 or BHT-350 Hall effect thrusters as its motor system. The satellite has a trapezoid shape plus two panels and is expected to have a 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 L9-029
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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