SL-12 R/B(AUX MOTOR) (15161)

COSPAR: 1984-078E | Alt Name: DM-48L SOZ-2
DECAYED

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

Launch Date

August 1, 1984

Launch Pad

LC200/40

Launch Vehicle

Proton-K/DM

Orbital Elements

NORAD ID

15161

International Designator

1984-078E

Decay Date

10/27/1986

Basic Satellite Info

Name

SL-12 R/B(AUX MOTOR)

Alternative Name

DM-48L 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

0.78

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.

Space Brief 21 Apr 2025

Space Brief 21 Apr 2025

Today's briefing highlights SpaceX's recent launch of spy satellites, a US Space Force contract for deep space tracking, and advancements in quantum communications in space.

Space Brief 2 Dec 2024

Space Brief 2 Dec 2024

Today's space updates include a new EU space commissioner's priorities, insights from declassified satellite images, and an update on NASA's Europa Clipper mission. A highlight in the Satellite Spotlight features the Russian satellite COSMOS 2070.

X Report 5 Apr 2025

X Report 5 Apr 2025

SpaceX secures major U.S. military contracts, Fram2 concludes historic mission, and preparations for another Starlink launch.

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

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.

Space Brief 17 Sep 2024

Space Brief 17 Sep 2024

Today's Space Brief covers crucial satellite events including upcoming launches, military space developments, and exceptional celestial sightings.

New Glenn Achieves First Booster Reuse on Mission 3 | KeepTrack Space Brief

New Glenn Achieves First Booster Reuse on Mission 3 | KeepTrack Space Brief

Blue Origin's New Glenn successfully reused its first stage booster for the first time on Mission 3, launching April 19. Booster reuse accelerates operational tempo.

Space Brief 15 Aug 2025

Space Brief 15 Aug 2025

Discover the latest in space news with the ULA's recent launch for the US Space Force, significant developments in radar tracking at high altitudes, and impactful policy changes involving military space missions.

SpaceX Plans Three Launches This Week Including ISRO Rideshare | KeepTrack X Report

SpaceX Plans Three Launches This Week Including ISRO Rideshare | KeepTrack X Report

SpaceX targets three launches this week including a rideshare mission with India's ISRO into Sun-Synchronous Orbit. Starlink network continues expanding with ongoing satellite deployments.