Space Brief 11 Feb 2025
Today's highlights include the debut of a new Chinese rocket, a successful Starlink launch, and concerns about Artemis 3. We also cover DoD developments and a notable SpaceX milestone.
NORAD ID
53971
International Designator
2022-125H
Decay Date
2/12/2026
Name
STARLINK-4639
Alternative Name
Starlink 4639
Type
Status
Owner
SPXS
Country
United States
Constellation
N/A
Related Satellites
Major Events
N/A
Length
0.2
Diameter
2.8
Span
9
Dry Mass
290
Launch Mass
305
Shape
Box + pan
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Payload
Starlink Group 4-29-08
Purpose
Communication
Mission
Communication
Manufacturer
SPXS
Life Expectancy
Unknown
Bus
Starlink
Configuration
Unknown
Motor
Krypton ion thrusters
Equipment
Ku/Ka-band payload, optical inter-satellite link
Power System
Solar arrays, batteries
ADCS
Unknown
Transmitter Frequency
Unknown
Learn more about satellites and other related topics.
Today's highlights include the debut of a new Chinese rocket, a successful Starlink launch, and concerns about Artemis 3. We also cover DoD developments and a notable SpaceX milestone.
Today's briefing covers significant developments in international rocket designs, recent astronaut health updates, and advancements in supersonic flight technology.
SpaceX prepares for its 100th Starlink launch while refining its lunar lander design for NASA's Artemis program amidst calls for architectural changes.
SpaceX targets July 16 for Starship Flight 13, testing V3 fixes and deploying functioning Starlink satellites for the first time.
SpaceX hit 50 launches in 2026 on April 26. Falcon Heavy's ViaSat-3 mission, only its 12th flight, scrubbed on weather at Kennedy; new date pending.
Starlink mobile service is planned for the US as SpaceX fires Ship 40's single Raptor in a prelaunch test, with 10,689 Starlink satellites working.
Exciting SpaceX updates include the arrival of Athena moon lander, SPHEREx telescope's upcoming launch, and SpaceX's GigaBay development.
Space Force initiates cybersecurity network upgrades across 14 bases. SDA expands $3.5B Tracking Layer with 72 new satellites. SpaceX and China drive record orbital launches in 2025.