Artemis 2 Returns to Pad, Targets April 1 Launch | KeepTrack Space Brief
NASA's SLS and Orion spacecraft rolled back to Launch Complex 39B, targeting April 1 for first crewed lunar flyby with four astronauts aboard.
SL-8 R/B (07577)
COSPAR: 1974-100B | Alt Name: Kosmos-3M 21-256 Stage 2
DECAYED
Image
Additional Sources
Launch Details
Launch Date
December 18, 1974
Launch Site
PLMSC
Launch Pad
LC132/1
Launch Vehicle
Kosmos 11K65M
Orbital Elements
NORAD ID
07577
International Designator
1974-100B
Decay Date
11/8/1980
Basic Satellite Info
Name
SL-8 R/B
Alternative Name
Kosmos-3M 21-256 Stage 2
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
4.2
Diameter
2.4
Span
4.2
Dry Mass
1434
Launch Mass
1434
Shape
Cyl
Radar Cross Section
25.0092
Visual Magnitude
Unknown
Color
Unknown
Material Composition
Unknown
Technical Details
Payload
S3M
Purpose
Unknown
Mission
Unknown
Manufacturer
OAZ
Life Expectancy
Unknown
Bus
S3
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.
Jonathan's Space Report
Jonathan's Space Report is a comprehensive resource for space launch and satellite data, compiled by astrophysicist Dr. Jonathan McDowell.
The Day Columbia's Crew Shared Their Vision of Peace
Twenty-two years ago, the crew of Space Shuttle Columbia awakened to John Lennon's 'Imagine' and shared a profound message about unity and peace that would become part of their enduring legacy
X Report 9 Jul 2025
SpaceX successfully launched 28 Starlink satellites, marking a significant milestone with its 500th orbital mission. Both launches underscore the company's commitment to expanding its satellite internet constellation and solidifying its position in the space industry.
The Day a Rocket Changed Space Policy Forever
Thirty years ago, a Chinese rocket veered off course two seconds after liftoff, destroyed a village, and triggered a political scandal that reshaped how the United States controls space technology to this day
Space Brief 9 Jul 2025
Today's brief covers the U.S. Space Force's new international strategy, Northrop Grumman's Golden Dome project, and ULA's Vulcan launches, alongside military budget priorities.
The Morning a Supply Ship Tore Open Mir
On 25 June 1997, a seven-ton cargo ship under hand control drifted into Mir's Spektr module, breached the hull, and left three crew members listening to their air hiss into space. It remains the worst collision in the history of human spaceflight.
Pentagon Reveals Space & Cyber "First Mover" Role in Iran Operations | KeepTrack Space Brief
Space & Cyber Command disrupted Iran ops as US munition stockpiles drop. Space Force shifts to commercial ground stations & faces acquisition workforce gaps.