X Report 16 Aug 2025
SpaceX receives FAA approval for its 10th Starship test flight scheduled for August 24, while also making strides in construction at the Cape and contesting broadband funding in Virginia.
ONEWEB-0639 (55803)
COSPAR: 2023-029H | Alt Name: OneWeb SL0639
Image
Additional Sources
Launch Details
Launch Date
March 9, 2023
Launch Site
Launch Pad
LC40
Launch Vehicle
Orbital Elements
NORAD ID
55803
International Designator
2023-029H
Epoch
Sun, 19 Jul 2026 20:39:13 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
87.92°
Right Ascension
298.47°
Eccentricity
Calculating...
Argument of Perigee
115.86°
Period
109.11 min
Mean Motion
13.20 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Explore in the Catalog
Basic Satellite Info
Name
ONEWEB-0639
Alternative Name
OneWeb SL0639
Type
Payload
Status
Operational
Owner
ONEWEBN
Country
United Kingdom
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 55803U 23029H 26200.86057286 -.00000119 00000+0 -32842-3 0 9993
2 55803 87.9184 298.4699 0002759 115.8552 244.2866 13.19724912163211
Source: Celestrak
Summary
The ONEWEB-0639 satellite, also known as OneWeb SL0639, is a communication satellite manufactured by ONEWUS and owned by ONEWBN. Launched on March 9, 2023, from the Air Force Eastern Test Range (AFETR) using a Falcon 9 launch vehicle from Launch Pad LC40, it employs an Arrow bus configuration. The satellite measures 1.3 meters in length with a diameter of 1 meter and a span of 5 meters. Its dry mass is 140 kg and its launch mass was 148 kg. It is equipped with a Ku-Band payload and solar arrays for power, along with SPT-50 or BHT-350 Hall effect thrusters for propulsion. The satellite has a mission lifetime of seven years and serves communication purposes in space.
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 L17-003
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.
Space Brief 8 Jun 2025
A busy day in space as delays hit Boeing's Starliner launch, SpaceX continues its rapid launch cadence, new concerns arise with the discovery of bacteria on the Tiangong space station, and the European Space Agency supports a pivotal Moon mission.
X Report 17 Mar 2025
SpaceX's Crew-10 mission safely docks with the ISS, setting up for a crew rotation. Starlink continues its global expansion with additional satellite deployments.
Falcon 9 Grounding Threatens ISS Crew Rotation Schedule | KeepTrack X Report
Falcon 9 stand-down may impact next ISS crew rotation as NASA monitors the situation. Musk merges xAI into SpaceX to build space data centers. 9,633 Starlink sats on orbit.
NASA Awards SpaceX 6 More Crew Missions as Boeing Stalls | KeepTrack X Report
NASA is adding 6 post-certification crew missions to SpaceX's contract as Boeing remains unable to certify Starliner for operational flights.
Understanding Earth's Orbits and Their Applications
Explore the dynamic realms of Earth's orbits, from LEO to GEO, unraveling the crucial roles they play in global communication, navigation, and surveillance.
Space Brief 2 Mar 2025
Today's brief highlights the successful landing of a private moon mission by Firefly Aerospace, a new simulator for the Spanish Air and Space Force, and the anticipated launch by Europe's Ariane 6. Plus, our Satellite Spotlight features the COSMOS 2484.
X Report 10 Feb 2025
SpaceX prepares for Starship Flight 8 with successful booster static fire; Starlink continues its expansion.