SL-7 R/B (03847)

COSPAR: 1969-031B | Alt Name: Kosmos-2 (N39) Stage 2

DECAYED

Image

Additional Sources

Launch Details

Launch Date

March 28, 1969

Launch Site

PLMSC

Launch Pad

LC133/3

Launch Vehicle

Kosmos 11K63

Orbital Elements

NORAD ID

03847

International Designator

1969-031B

Decay Date

9/16/1969

Basic Satellite Info

Name

SL-7 R/B

Alternative Name

Kosmos-2 (N39) 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

Diameter

1.6

Span

Dry Mass

840

Launch Mass

840

Shape

Cyl

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

S1M

Purpose

Unknown

Mission

Unknown

Manufacturer

YUZH

Life Expectancy

Unknown

Bus

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.

SpaceX Unveils Stargaze SSA System, Explores xAI Merger Ahead of IPO | KeepTrack X Report

SpaceX unveils Stargaze space situational awareness system during 13th launch of January. Reports surface of SpaceX-xAI merger talks ahead of potential IPO. Dual-coast Starlink launches from CA and FL.

X Report 16 Nov 2025

SpaceX successfully launched 29 Starlink satellites on November 14, marking the first of two rapid-fire Falcon 9 missions from Florida's Space Coast in under four hours.

Space Brief 12 Dec 2025

Today's space brief highlights the U.S. Space Force's new satellite naming scheme, the Air Force Secretary's warnings on China's space advances, BAE Systems' DARPA award, strategies for future space defense, the importance of GEO satellite refueling, and Blue Origin's plans for Space Force certification.

X Report 9 Mar 2025

SpaceX reveals plans for Florida Starship launches, NASA teams up for dual missions, and FCC boosts satellite connectivity.

Falcon 9 Lifts 11,000 lbs of ISS Cargo on NG-24 | KeepTrack X Report

SpaceX's Falcon 9 launches Northrop Grumman's Cygnus NG-24 to the ISS carrying 11,000 lbs of critical cargo this weekend.

Why Nobody Can See What Is Happening Near the Moon

The volume of space between Earth and the Moon is roughly a thousand times larger than the orbit we actually watch, and almost none of it is under surveillance. As the U.S. and China race to build lunar outposts, the Space Force is scrambling to put eyes on a region it has been effectively blind to.

Space Brief 19 Mar 2025

Today's brief explores a simulated 'dogfight' in space by Chinese satellites, insights into a cloud platform by Oracle and Singapore's defense agency, and more space-related developments.

Space Brief 28 Nov 2025

Discover the latest on China's Zhuque-3 launch, ISS crew updates, ESA's budget dealings, a strategic super-resolution partnership, and ACME Space's innovative plans.