PrSM Used in Combat for First Time & Space Force Demands More Troops | KeepTrack Space Brief
CENTCOM confirms first-ever combat use of PrSM against Iranian targets. Space Force VP calls for aggressive end strength growth. Artemis II boosters on pad.
SL-4 R/B (13726)
COSPAR: 1982-117B | Alt Name: Soyuz-U 49-217 Blok-I
DECAYED
Image
Additional Sources
Launch Details
Launch Date
December 16, 1982
Launch Site
Launch Pad
LC31
Launch Vehicle
Soyuz-U
Orbital Elements
NORAD ID
13726
International Designator
1982-117B
Decay Date
12/19/1982
Basic Satellite Info
Name
SL-4 R/B
Alternative Name
Soyuz-U 49-217 Blok-I
Type
Rocket Body
Status
Space Junk
Owner
RVSN
Country
USSR
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
Unknown
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
11S510
Purpose
Unknown
Mission
Unknown
Manufacturer
PROG
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.
The Day Europe Changed the Game for Small Satellites
Thirteen years ago, a new rocket lifted off from the edge of the Amazon rainforest, marking Europe's entry into the small satellite launch market and carrying the dreams of university students across a continent
SpaceX Postpones Falcon Heavy Launch Carrying Secretive X-37B Spaceplane
SpaceX delays the much-anticipated Falcon Heavy launch of the secretive X-37B military spaceplane, marking a significant moment in space exploration and military technology.
X Report 25 Jul 2025
SpaceX successfully launched NASA's TRACERS mission while Starlink faced a brief global outage, affecting users worldwide.
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.
Artemis 2 Targets April 1 Lunar Flyby with 4-Person Crew | KeepTrack Space Brief
NASA's Artemis 2 launches April 1 with Commander Reid Wiseman and 3 crew members for first crewed lunar flyby since Apollo 17 in 1972.
Space Brief 28 Nov 2024
Today's briefing covers China's announcement of the Beidou system upgrade, launch updates for Vega C, challenges to global GPS reliability, and delays in the VERITAS Venus mission.
Six Missions Worth Watching After Artemis II
Artemis II grabbed the headlines, but six other missions are quietly approaching milestones that could reshape what we know about Mercury, Mars, asteroids, exoplanets, and the Moon's south pole. Here is what is actually happening with each of them.