25 Starlinks Lofted from Vandenberg in Latest West Coast Push | KeepTrack X Report
SpaceX launched 25 Starlink satellites from Vandenberg SFB on March 8, growing a constellation now totaling 9,924 active orbital nodes.
ONEWEB-0541 (55142)
COSPAR: 2023-004C | Alt Name: OneWeb SL0541
Image
Additional Sources
Launch Details
Launch Date
January 10, 2023
Launch Site
Launch Pad
LC40
Launch Vehicle
Orbital Elements
NORAD ID
55142
International Designator
2023-004C
Epoch
Sun, 19 Jul 2026 18:15:52 GMT
Apogee
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Perigee
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Inclination
87.89°
Right Ascension
14.57°
Eccentricity
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Argument of Perigee
88.48°
Period
109.80 min
Mean Motion
13.11 rev/day
Latitude
Calculating...
Longitude
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Altitude
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Velocity
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Polar Plot
3D Visualization
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Basic Satellite Info
Name
ONEWEB-0541
Alternative Name
OneWeb SL0541
Type
Payload
Status
Operational
Owner
ONEWEBN
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 55142U 23004C 26200.76102595 .00000001 00000+0 -32292-4 0 9994
2 55142 87.8894 14.5740 0002000 88.4776 271.6581 13.11418734170210
Source: Celestrak
Summary
The Oneweb-0541 satellite, also known as OneWeb SL0541, was launched on January 10, 2023, from LC40 at the AFETR launch site using a Falcon 9 launch vehicle. Built by ONEWUS and owned by ONEWBN, this UK communication satellite uses an Arrow bus configuration with dimensions of 1.3 meters in length and 1 meter in diameter. It has a span of 5 meters, dry mass of 140 kg, and was launched with a total mass of 148 kg. Equipped with Ku-Band payload and solar arrays for power generation, the satellite is designed to operate for approximately seven years. The propulsion system includes SPT-50 or BHT-350 Hall effect thrusters.
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 L16-004
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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