SpaceX Files $18.7B IPO as Starship V3 Debuts | KeepTrack X Report
SpaceX's S-1 reveals $18.7B in revenue as Starship Flight 12 debuts Block 3 hardware from Pad 2 on May 21, 2026.
CZ-4C R/B (50467)
COSPAR: 2021-131C | Alt Name: CZ-4C Y39 Stage 3
Image
Additional Sources
Launch Details
Launch Date
December 26, 2021
Launch Site
TAISC
Launch Pad
LC9
Launch Vehicle
Chang Zheng 4C
Orbital Elements
NORAD ID
50467
International Designator
2021-131C
Epoch
Sun, 19 Jul 2026 11:09:08 GMT
Apogee
Calculating...
Perigee
Calculating...
Inclination
98.73°
Right Ascension
28.67°
Eccentricity
Calculating...
Argument of Perigee
289.92°
Period
98.10 min
Mean Motion
14.68 rev/day
Latitude
Calculating...
Longitude
Calculating...
Altitude
Calculating...
Velocity
Calculating...
Polar Plot
3D Visualization
Explore in the Catalog
Basic Satellite Info
Name
CZ-4C R/B
Alternative Name
CZ-4C Y39 Stage 3
Type
Rocket Body
Status
Space Junk
Owner
CNSA
Country
China
Constellation
N/A
Related Satellites
Major Events
N/A
Latest TLEs
1 50467U 21131C 26200.46468227 .00000116 00000+0 28909-4 0 9998
2 50467 98.7313 28.6744 0107693 289.9239 69.0388 14.67854173244093
Source: Celestrak
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
6.9
Diameter
2.9
Span
6.9
Dry Mass
1000
Launch Mass
1000
Shape
Cyl
Radar Cross Section
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
CZ-4C Stage 3
Purpose
Unknown
Mission
Unknown
Manufacturer
SAST
Life Expectancy
Unknown
Bus
CZ-4 Stage 3
Configuration
Unknown
Motor
Unknown
Equipment
Unknown
Power System
Unknown
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 25 Apr 2025
Today's briefing covers the largest-ever spectrum sharing demo planned by the Pentagon, innovative strategies for drone deployment in the Air Force, and significant military procurement developments.
X Report 25 Mar 2025
SpaceX achieves new milestones with back-to-back launches for the NRO while preparing for groundbreaking crewed polar mission FRAM2.
X Report 16 Dec 2024
SpaceX announces SPHEREx launch date for February 2025, and Airbus completes delivery of Thuraya 4 satellite for upcoming launch.
Space Brief 27 Oct 2025
Today's space highlights include the US Space Force's advanced tracking contract, a milestone in SpaceX's Starlink program, and a new initiative to remove space debris.
Space Brief 30 Nov 2024
Today's highlights include SpaceX's dual satellite launches, a new Space Force contract with Raytheon, and Astroscale's upcoming OneWeb mission.
Artemis 2 Crew Returns After 50-Year Lunar Flyby | KeepTrack Space Brief
Artemis 2 astronauts completed first crewed lunar flyby since Apollo 17, traveling 690,000 miles aboard Orion. Four crew validated deep-space systems.
Space Brief 15 Sep 2025
Discover the latest in satellite tracking with key topics covering the launch of Tranche 1 satellites for the Space Development Agency, a record-setting Transporter-15 mission by Exolaunch, and new defense-focused satellite connectivity solutions by Satlink and Rivada.