SL-12 R/B(AUX MOTOR) (08415)

COSPAR: 1975-097E | Alt Name: DM-4L SOZ-2

DECAYED

Image

Additional Sources

Launch Details

Launch Date

October 8, 1975

Launch Site

Tyuratam Missile and Space Complex

Launch Pad

LC81/23

Launch Vehicle

Proton-K/DM

Orbital Elements

NORAD ID

08415

International Designator

1975-097E

Decay Date

10/17/1978

Explore in the Catalog

SOZ bus USSR satellites Rocket Bodies

Basic Satellite Info

Name

SL-12 R/B(AUX MOTOR)

Alternative Name

DM-4L SOZ-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

1.1

Diameter

0.5

Span

1.1

Dry Mass

Launch Mass

120

Shape

Cyl

Radar Cross Section

0.4986

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

SOZ

Purpose

Unknown

Mission

Unknown

Manufacturer

NPOE

Life Expectancy

Unknown

Bus

SOZ

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.

Crew-11 Returns to Earth After Historic ISS Medical Evacuation | KeepTrack X Report

SpaceX Crew-11 mission returns safely to Earth after first-ever medical evacuation from ISS. Crew Dragon splashes down in Pacific Ocean off California coast. Mission ended early due to health concern.

New Glenn Upper Stage Fails, BlueBird 7 Lost, Space Brief 20 Apr 2026

New Glenn's upper stage malfunctioned April 19, stranding AST SpaceMobile's BlueBird 7; the satellite is lost. Vulcan may fly without solid boosters.

X Report 7 Apr 2025

SpaceX prepares for another Starlink launch today, following a successful deployment over the weekend from Florida's Space Coast.

X Report 26 Aug 2025

SpaceX's ongoing challenges with the Starship Flight 10 launch are prominent today, as weather and technical issues continue to push back the schedule. Meanwhile, successful cargo missions to the ISS highlight the company's ongoing commitment to space operations.

X Report 7 Oct 2025

SpaceX successfully launched 28 Starlink satellites on October 7, further expanding its broadband constellation while hosting an active launch schedule this week.

X Report 29 Sep 2025

In today's update, SpaceX successfully launched 28 Starlink satellites from Vandenberg, while Italy grapples with its satellite strategy amid rising reliance on Starlink services.

X Report 21 Nov 2024

SpaceX's Starship gains military attention, a feather-light achievement, and a busy week for Falcon 9.

X Report 28 Feb 2025

SpaceX postpones Starship Flight 8, successfully launches Starlink satellites and two lunar missions.