X Report 18 Nov 2025
SpaceX successfully launched the Sentinel-6B satellite to monitor global sea levels while resuming daytime rocket launches. Furthermore, delays in the Starship timeline impact NASA's Artemis 3 mission schedule.
ONEWEB-0313 (49099)
COSPAR: 2021-075AA | Alt Name: OneWeb SL0313
Image
Additional Sources
Launch Details
Launch Date
August 21, 2021
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-2-1B
Orbital Elements
NORAD ID
49099
International Designator
2021-075AA
Epoch
Sat, 04 Jul 2026 04:50:12 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
87.91°
Right Ascension
2.49°
Eccentricity
Calculating...
Argument of Perigee
86.60°
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-0313
Alternative Name
OneWeb SL0313
Type
Payload
Status
Operational
Owner
ONEWEBN
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 49099U 21075AA 26185.20153010 -.00000024 00000-0 -94442-4 0 9995
2 49099 87.9132 2.4932 0001930 86.6024 273.5328 13.17649508235837
Source: Celestrak
Summary
The ONEWEB-0313 satellite, also known as OneWeb SL0313, is a communication satellite manufactured by ONEWUS and launched on August 21, 2021, from the TSYMC launch site using Soyuz-2-1B at LC31. It has an Arrow bus configuration with dimensions of 1.3 meters in length, 1 meter in diameter, and a span of 5 meters. The satellite's dry mass is 140 kilograms and it was launched with a total mass of 148 kilograms. Equipped with a Ku-Band payload and solar arrays for power generation, ONEWEB-0313 utilizes SPT-50 or BHT-350 Hall effect thrusters as its motor. Its mission is to provide communication services and it has an expected operational lifetime of seven years. The satellite features a trapezoid with two panels shape and belongs to the ONEWEB constellation owned by ONEWEBN.
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 L9-022
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
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
X Report 15 Jun 2025
SpaceX explores new horizons with Starship's point-to-point travel announcement and reports significant Starlink deployment progress.
LeoLabs and the Business of Watching Everything
A startup built on Cold War-era radar science now tracks 25,000 objects in orbit - and the Pentagon can't get enough of it. But can its radars really compete with the Space Surveillance Network?
Pentagon Pauses LEO Constellation as Acquisition Reviews Continue | KeepTrack Space Brief
Pentagon puts LEO constellation layers on hold during acquisition review. SpaceX and xAI join $100M autonomous drone contest. China's Zenk Space completes first stage static fire.
X Report 2 Jun 2025
SpaceX delays the launch of 23 Starlink satellites due to geomagnetic storm concerns, adjusting the schedule for an upcoming Falcon 9 mission.
Space Brief 14 Nov 2025
Today's brief covers Firefly's acquisition, military tracking from the moon, France's boost in military space funding, and more.
Space Brief 29 Sep 2025
Today's Space Brief discusses significant military satellite launches, groundbreaking agreements for lunar nuclear power, and Italy's satellite strategy dilemma. Additionally, we cover the Dream Chaser's upcoming demonstration flight and new Pentagon contracts for rocket motor production.
Starship Barge Spotted for Component Transport to Kennedy Space Center | KeepTrack X Report
Starship transport barge identified for shipping components from Starbase to Kennedy Space Center. Starlink's 2025 report shows 4.6M new customers and expansion to 35 new regions.