X Report 26 Nov 2024
SpaceX sets launch milestones with quick turnarounds and new Starlink deployments, while eyeing rapid Starship expansions next year.
SL-4 R/B (25168)
COSPAR: 1998-009B | Alt Name: Soyuz-U-PVB No. 046 Blok-I
DECAYED
Image
Additional Sources
Launch Details
Launch Date
February 17, 1998
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-U-PVB
Orbital Elements
NORAD ID
25168
International Designator
1998-009B
Decay Date
2/21/1998
Basic Satellite Info
Name
SL-4 R/B
Alternative Name
Soyuz-U-PVB No. 046 Blok-I
Type
Rocket Body
Status
Space Junk
Owner
RVSNR
Country
Russia
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
6.7
Diameter
2.7
Span
6.7
Dry Mass
2350
Launch Mass
2350
Shape
Cyl
Radar Cross Section
10.9
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
11S510
Purpose
Unknown
Mission
Unknown
Manufacturer
PROGT
Life Expectancy
Unknown
Bus
Blok-I
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.
User-Inspired Update
A user suggestion led to the addition of new visualizations for satellites, debris, and unidentified objects across different orbits in KeepTrack.
A Celebration of Earth Day | Photos of Home
For 56 years, April 22 has been the day the world stops to look at itself. Before that was possible, someone had to invent the view. This is the story of how we first saw Earth from the outside, from a crashed V-2 camera in the New Mexico desert to the Blue Marble that still hangs on classroom walls.
Starlink Crosses 10,000 Active Satellites, X Report 18 Mar 2026
Starlink satellite count 2026: SpaceX tops 10,000 active satellites, 10,037 working of 11,558 launched, under seven years after first launch.
Rocket Lab to Acquire Iridium for $8B, X Report 30 Jun 2026
Rocket Lab will acquire Iridium for $8B to challenge SpaceX, whose Starlink constellation holds 10,706 working satellites of 12,390 launched.
X Report 25 Jan 2025
SpaceX advances Starship infrastructure, President Trump considers closing the National Space Council, and 23 new Starlink satellites boost global connectivity.
Starship Florida Launch Targeting 2026 | KeepTrack X Report
SpaceX is pushing to launch Starship from Cape Canaveral before end of 2026, with contractors ramping work at LC-39A.
SpaceX Stock Eyed for US Kids' Savings Accounts | KeepTrack X Report
Trump reportedly asked Musk to donate SpaceX equity to seed children's savings accounts as Starlink tops 10,706 working satellites in orbit.