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

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

Image
SL-12 R/B(AUX MOTOR) Satellite Image
Additional Sources
Launch Details

Launch Date

October 8, 1975

Launch Pad

LC81/23

Launch Vehicle

Proton-K/DM

Orbital Elements

NORAD ID

08415

International Designator

1975-097E

Decay Date

10/17/1978

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

60

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.

Who Owns SpaceX in 2026? Ownership, Valuation, and the Trillion-Dollar IPO

Who Owns SpaceX in 2026? Ownership, Valuation, and the Trillion-Dollar IPO

Elon Musk controls 79% of SpaceX's votes with just 42% of the equity - and the company just merged with his AI startup at a $1.25 trillion valuation. Here's who actually owns what, how the money works, and what a $1.75 trillion IPO means for investors.

MDA and Hanwha Partner on South Korea K-LEO Defense Network | KeepTrack Space Brief

MDA and Hanwha Partner on South Korea K-LEO Defense Network | KeepTrack Space Brief

MDA Space and Hanwha target South Korea's K-LEO defense satellite network. House passes $839B defense bill. Pentagon picks 25 vendors for $150M drone competition.

Space Brief 12 Jun 2025

Space Brief 12 Jun 2025

Today's Space Brief covers major developments including the public debut of Voyager Technologies, advancements in defense by Sierra Space, and Pentagon's mega-constellation challenges. Also featured are new software selections by the Space Force and legislative actions on acquisition pilots.

Space Brief 29 Nov 2025

Space Brief 29 Nov 2025

Today's Space Brief covers a Soyuz launch mishap that damaged Baikonur pad, Varda Space's AFRL test flights, ION vehicles aboard SpaceX Transporter-15, and more.

X Report 8 Aug 2025

X Report 8 Aug 2025

SpaceX celebrates its 100th launch of the year with a Falcon 9 mission carrying Amazon's Project Kuiper satellites, while Crew-10 prepares for its return from the ISS and the company expands its interplanetary ambitions with new Mars partnerships.

Starlink Satellites Dominate Earth's Orbit

Starlink Satellites Dominate Earth's Orbit

SpaceX's Starlink constellation has grown at an astonishing rate, now accounting for over 20% of all trackable objects in orbit. With plans for tens of thousands more, Starlink is on the cusp of forever changing the landscape of Earth's near-space environment.

Space Brief 16 Dec 2024

Space Brief 16 Dec 2024

Today's briefing covers the ULA's military application for Vulcan's upper stage, FAA's efforts to expedite launch licensing, and a fascinating flyby of Mercury by BepiColombo.

X Report 23 Jan 2025

X Report 23 Jan 2025

SpaceX gears up for Starship Flight 8 amidst Starlink's growing presence in global internet markets.