X Report 22 Mar 2025
SpaceX achieves its 450th Falcon 9 launch, setting a new turnaround record, while its competitor ULA remains grounded, awaiting clearance from the Space Force.
OBJECT B (58587)
COSPAR: 2023-199B | Alt Name: Shuang Quxian 1 Y7 St4
DECAYED
Image
Additional Sources
Launch Details
Launch Date
December 17, 2023
Launch Site
JSC
Launch Pad
JQ -
Launch Vehicle
Shuang Quxian 1
Orbital Elements
NORAD ID
58587
International Designator
2023-199B
Decay Date
4/7/2024
Explore in the Catalog
Basic Satellite Info
Name
OBJECT B
Alternative Name
Shuang Quxian 1 Y7 St4
Type
Rocket Body
Status
Space Junk
Owner
XJRY
Country
China
Constellation
N/A
Related Satellites
Major Events
N/A
Summary
A rocket body, also commonly referred to as an upper stage or spent rocket stage, is the structural shell left behind after a rocket has delivered its payload to orbit. These large and often heavy pieces of space hardware can remain in orbit for years, posing significant collision hazards as part of the growing space debris problem. If left uncontrolled, rocket bodies have the potential to reenter Earth's atmosphere unpredictably, which can lead to falling debris in populated areas. Additionally, they risk colliding with operational satellites or the International Space Station, creating more debris and putting human life at risk.
Physical Characteristics
Length
3.8
Diameter
1.2
Span
3.8
Dry Mass
200
Launch Mass
200
Shape
Cyl
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
SQ-1-4
Purpose
Unknown
Mission
Unknown
Manufacturer
SANJ
Life Expectancy
Unknown
Bus
Unknown
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
ADCS
Unknown
Transmitter Frequency
Unknown
Satellite Articles
View All Posts »Learn more about satellites and other related topics.
SpaceX IPO Raises $75B at $135/Share on Nasdaq Debut | KeepTrack X Report
SpaceX's historic $75B IPO priced at $135/share launches SPCX on Nasdaq at a $1.77 trillion valuation — the largest IPO in history.
X Report 27 Oct 2025
SpaceX achieves a significant milestone with over 10,000 satellites launched, the West Coast welcomes Falcon Heavy launches, and developments around Artemis 3 prompt competitive discourse.
1 Million AI Data Centers in Orbit Threaten Astronomy | KeepTrack X Report
SpaceX's proposed 1-million-satellite AI data center constellation alarms astronomers as Falcon 9 logs its 25th Starlink launch of 2026.
Space Brief 5 Dec 2025
Focusing on military satellite initiatives, defense strategies, and advancements in air and cyber capabilities
Artemis 3 Schedule Slips With No Mission Plan From NASA | KeepTrack Space Brief
NASA's Artemis 3 lunar landing mission schedule continues slipping over 2 months after revised plans announced, with no crew or surface activity details released publicly yet.
The Day Two Astronauts Proved We Could Reach the Moon
Sixty years ago, Frank Borman and James Lovell launched aboard Gemini 7 for a grueling 14-day mission that would prove humans could endure the journey to the moon and achieve the first true rendezvous in space
SpaceX Starfall Reentry Capsule Makes Debut Flight | KeepTrack X Report
SpaceX's secretive Starfall reentry demo launched June 23 as Starmind AI constellation targets 1M orbital compute nodes.