X Report 21 Sep 2025
Key updates include a potential delay for the Starship lunar lander, successful static fire tests for Ship 38, and the latest Starlink satellite launch plans.
ONEWEB-0440 (50503)
COSPAR: 2021-132AL | Alt Name: OneWeb SL0440
Image
Additional Sources
Launch Details
Launch Date
December 27, 2021
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-2-1B
Orbital Elements
NORAD ID
50503
International Designator
2021-132AL
Epoch
Sun, 19 Jul 2026 19:44:49 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
87.92°
Right Ascension
328.97°
Eccentricity
Calculating...
Argument of Perigee
109.48°
Period
109.20 min
Mean Motion
13.19 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
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Basic Satellite Info
Name
ONEWEB-0440
Alternative Name
OneWeb SL0440
Type
Payload
Status
Operational
Owner
ONEWEBN
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 50503U 21132AL 26200.82280058 -.00000133 00000+0 -36976-3 0 9997
2 50503 87.9205 328.9657 0001790 109.4837 250.6489 13.18685448225871
Source: Celestrak
Summary
The ONEWEB-0440 satellite, also known as OneWeb SL0440, is a communication satellite manufactured by ONEWUS and owned by ONEWEBN. Launched on December 27, 2021, from the TYMSC site using Soyuz-2-1B launch vehicle from LC31, it has an expected operational lifetime of seven years. The satellite uses an Arrow bus configuration with dimensions including a length of 1.3 meters, diameter of 1 meter, and span of 5 meters. It has a dry mass of 140 kg and was launched with a total mass of 148 kg. Equipped with a Ku-Band payload and solar arrays for power generation along with batteries, the satellite employs SPT-50 or BHT-350 Hall effect thrusters as its motor system. Its shape is described as Trapezoid+2 pan and it operates within a communication mission scope.
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 L12-008
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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