SL-7 R/B (07539)

COSPAR: 1974-091B | Alt Name: Kosmos-2 (N115) Stage 2
DECAYED

Image
SL-7 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

November 20, 1974

Launch Site

PLMSC

Launch Pad

LC133/3

Launch Vehicle

Kosmos 11K63

Orbital Elements

NORAD ID

07539

International Designator

1974-091B

Decay Date

3/15/1975

Basic Satellite Info

Name

SL-7 R/B

Alternative Name

Kosmos-2 (N115) 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

8

Diameter

1.6

Span

8

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

S1

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.

X Report 11 Jan 2025

X Report 11 Jan 2025

Starship Flight 7 scheduled for Jan 13, SpaceX sets Falcon 9 record, and NRO expands spy satellite constellation.

Pentagon Seeks Commercially Built GEO Spy Satellites | KeepTrack Space Brief

Pentagon Seeks Commercially Built GEO Spy Satellites | KeepTrack Space Brief

Pentagon's DIU seeks commercial partners for GEO spy satellites. SpaceX unveils space traffic management system. Bahamas rocket landings resume. GPS III falls short in modern warfare.

Growing Threat of Space Junk

Growing Threat of Space Junk

Over 27,000 high-speed pieces of space junk now threaten vital satellites, requiring sophisticated tracking and urgent innovation of orbital debris removal methods like harpoons and nets.

Kratos Wins $447M Space Force MEO Missile Tracking Deal | KeepTrack Space Brief

Kratos Wins $447M Space Force MEO Missile Tracking Deal | KeepTrack Space Brief

Kratos awarded $447 million Space Force contract for Resilient Missile Warning Tracking ground ops center in Medium Earth Orbit, shifting missile detection away from vulnerable GEO satellites.

Space Brief 6 May 2025

Space Brief 6 May 2025

Today's brief covers a significant hypersonic flight by Stratolaunch, the US Space Force's missile warning upgrades, and major government space investments.

Blue Origin's New Glenn Destroyed in Static Fire Test at Cape Canaveral | KeepTrack Space Brief

Blue Origin's New Glenn Destroyed in Static Fire Test at Cape Canaveral | KeepTrack Space Brief

Blue Origin's fourth New Glenn rocket exploded during static fire at LC-36, Cape Canaveral, destroying the fully stacked vehicle and pad infrastructure. Amazon Leo launch postponed indefinitely.

X Report 24 Nov 2025

X Report 24 Nov 2025

SpaceX successfully launches 28 Starlink satellites on a new Falcon 9 rocket from California, marking a significant milestone for their satellite constellation.

$4.16B Space Force Contract Goes to SpaceX, X Report 30 May 2026

$4.16B Space Force Contract Goes to SpaceX, X Report 30 May 2026

SpaceX wins a $4.16B US Space Force contract for an airborne threat tracking satellite network. Starlink holds 10,413 satellites in orbit, 10,397 working.