X Report 28 Jul 2025
SpaceX continues its ambitious satellite deployment schedule with two successful Starlink launches in just 24 hours, enhancing global connectivity.
ONEWEB-0221 (48789)
COSPAR: 2021-045Y | Alt Name: OneWeb SL0221
Image
Additional Sources
Launch Details
Launch Date
May 28, 2021
Launch Site
VOSTO
Launch Pad
PU1S
Launch Vehicle
Soyuz-2-1B
Orbital Elements
NORAD ID
48789
International Designator
2021-045Y
Epoch
Fri, 03 Jul 2026 21:36:45 GMT
Apogee
Calculating...
Perigee
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Inclination
87.90°
Right Ascension
255.86°
Eccentricity
Calculating...
Argument of Perigee
105.53°
Period
109.46 min
Mean Motion
13.16 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
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Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
ONEWEB-0221
Alternative Name
OneWeb SL0221
Type
Payload
Status
Operational
Owner
ONEWEBN
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 48789U 21045Y 26184.90052910 .00000030 00000-0 44932-4 0 9994
2 48789 87.9008 255.8622 0001981 105.5255 254.6094 13.15547220246576
Source: Celestrak
Summary
The ONEWEB-0221 satellite, also known as OneWeb SL0221, is a communication satellite built by ONEWUS for ONEWBN (OneWeb). Launched on May 28, 2021, from the Vostochny Cosmodrome using a Soyuz-2-1B launch vehicle, it has a trapezoid shape with two panels and uses solar arrays and batteries for power. The satellite is equipped with a Ku-Band payload for communication purposes and employs SPT-50 or BHT-350 Hall effect thrusters as its motor system. Its dimensions include a length of 1.3 meters, diameter of 1 meter, and span of 5 meters, with a launch mass of 148 kg and a dry mass of 140 kg. The expected operational lifetime is seven 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 L7-001
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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