Ku-Band
The frequency band that brought satellite TV to small dishes on rooftops and revolutionized direct-to-home broadcasting
CZ-5 R/B (25957)
COSPAR: 1999-061B | Alt Name: CZ-2F Y1 Stage 2
DECAYED
Image
Additional Sources
Launch Details
Launch Date
November 19, 1999
Launch Site
JSC
Launch Pad
LC921
Launch Vehicle
Chang Zheng 2F
Orbital Elements
NORAD ID
25957
International Designator
1999-061B
Decay Date
11/27/1999
Basic Satellite Info
Name
CZ-5 R/B
Alternative Name
CZ-2F Y1 Stage 2
Type
Rocket Body
Status
Space Junk
Owner
CALT
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
15.5
Diameter
3.3
Span
15.5
Dry Mass
5500
Launch Mass
5500
Shape
Cyl
Radar Cross Section
7.128
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
CZ-2F Stage 2
Purpose
Unknown
Mission
Unknown
Manufacturer
CALT
Life Expectancy
Unknown
Bus
CZ-2F
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.
Space Brief 1 Nov 2024
Today's update highlights Boeing's challenges with the Starliner, Europe's IRIS2 constellation advancement, China's CAS Space's global ambitions, and vivid new telescope images of cosmic events.
Europe's First Starlink Direct-to-Smartphone Service Goes Live | KeepTrack X Report
Virgin Media O2 launches Europe's first Starlink direct-to-smartphone service in the UK. SpaceX launches 29 more Starlink satellites. Dragon cargo capsule returns after 6-month ISS mission.
Space Brief 20 Mar 2025
Today's brief highlights critical discussions in military space readiness, potential satellite 'dogfighting' scenarios, international defense collaborations, and a notable communications satellite launch.
X Report 15 Dec 2025
SpaceX made significant strides in satellite deployment with successful launches of 27 and 29 Starlink satellites, marking both a milestone in landings and ongoing expansion of the Starlink constellation.
X Report 25 May 2025
SpaceX addresses the cause of its recent Starship Flight 8 explosion, while successfully launching 23 more Starlink satellites as it continues to expand its constellation.
X Report 3 May 2025
Key updates include a successful Falcon 9 launch of 28 Starlink satellites and a static fire test of the Starship spacecraft, while T-Mobile's Starlink service aims to attract new customers.
Space Brief 5 Feb 2025
Today's briefing covers strategic military developments including missile defense proposals and board realignments, intertwined with rising space defense exports and autonomous launcher progress.