SL-7 R/B (05939)

COSPAR: 1972-028B | Alt Name: Kosmos-2 (N88) Stage 2
DECAYED

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

Launch Date

April 11, 1972

Launch Site

PLMSC

Launch Pad

LC133/3

Launch Vehicle

Kosmos 11K63

Orbital Elements

NORAD ID

05939

International Designator

1972-028B

Decay Date

6/16/1972

Basic Satellite Info

Name

SL-7 R/B

Alternative Name

Kosmos-2 (N88) 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.

Space Brief 4 Aug 2025

Space Brief 4 Aug 2025

Key developments in space today include significant satellite launches, advancements in space technology, and an exciting crewed suborbital flight. Highlights cover China's satellite internet progress, a promising innovation for solar cells, and recent SpaceX and Blue Origin activities.

The International Scientific Optical Network (ISON)

The International Scientific Optical Network (ISON)

How a controversial telescope network has become a significant player in tracking the increasingly crowded orbital environment, raising important questions about transparency, dual-use technologies, and the future of space situational awareness.

Falcon 9 Grounded After Upper Stage Anomaly, Crew-12 at Risk | KeepTrack X Report

Falcon 9 Grounded After Upper Stage Anomaly, Crew-12 at Risk | KeepTrack X Report

SpaceX pauses all Falcon 9 launches after upper stage anomaly during Starlink mission. Crew-12 astronaut launch may be affected. Booster 19 rolls out for cryogenic testing.

Space Brief 17 Jan 2025

Space Brief 17 Jan 2025

Today's brief covers developments involving Space Force officials, Sierra Space's satellite milestone, and Voyager Space's rebranding for national security focus. Additionally, we spotlight the Cosmos 447 satellite.

X Report 24 Aug 2025

X Report 24 Aug 2025

SpaceX successfully launched its CRS-33 Dragon cargo mission to the ISS, while preparations for the upcoming Starship Flight 10 continue, highlighting significant advancements in both cargo operations and test flight reliability.

Understanding Earth's Orbits and Their Applications

Understanding Earth's Orbits and Their Applications

Explore the dynamic realms of Earth's orbits, from LEO to GEO, unraveling the crucial roles they play in global communication, navigation, and surveillance.

X Report 5 Dec 2025

X Report 5 Dec 2025

SpaceX made significant strides with the launch of 28 Starlink satellites while navigating regulatory challenges regarding rural broadband funding. Additionally, developments on the Crew Dragon mission continue to evolve with a change in cosmonaut assignment.

China's Shenlong Deploys Six Objects

China's Shenlong Deploys Six Objects

Details on China's current Shenlong spaceplane mission and its recent deployment of six objects.