New Glenn Upper Stage Fails, BlueBird 7 Lost, Space Brief 20 Apr 2026
New Glenn's upper stage malfunctioned April 19, stranding AST SpaceMobile's BlueBird 7; the satellite is lost. Vulcan may fly without solid boosters.
ONEWEB-0307 (49189)
COSPAR: 2021-083D | Alt Name: OneWeb SL0307
Image
Additional Sources
Launch Details
Launch Date
September 14, 2021
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-2-1B
Orbital Elements
NORAD ID
49189
International Designator
2021-083D
Epoch
Sat, 04 Jul 2026 01:42:18 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
87.90°
Right Ascension
316.87°
Eccentricity
Calculating...
Argument of Perigee
94.85°
Period
109.63 min
Mean Motion
13.13 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Basic Satellite Info
Name
ONEWEB-0307
Alternative Name
OneWeb SL0307
Type
Payload
Status
Operational
Owner
ONEWEBN
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 49189U 21083D 26185.07105226 -.00000115 00000-0 -35059-3 0 9994
2 49189 87.8971 316.8743 0001914 94.8543 265.2805 13.13470459233141
Source: Celestrak
Summary
The ONEWEB-0307 satellite, also known as OneWeb SL0307, was launched by ONEWUS on September 14, 2021, from the TSYMC launch site using a Soyuz-2-1B vehicle from LC31. This communication satellite is part of the UK's constellation and uses an Arrow bus configuration. It measures 1.3 meters in length with a diameter of 1 meter and a span of 5 meters. The dry mass of the satellite is 140 kg, while its launch mass was 148 kg. Equipped with a Ku-Band payload and solar arrays for power generation, it includes SPT-50 or BHT-350 Hall effect thrusters as part of its propulsion system. Its operational lifetime is projected to be around 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 L10-017
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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