SL-7 R/B (04381)

COSPAR: 1970-035B | Alt Name: Kosmos-2 (N59) Stage 2
DECAYED

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

Launch Date

April 24, 1970

Launch Site

KYMSC

Launch Pad

LC86/4

Launch Vehicle

Kosmos 11K63

Orbital Elements

NORAD ID

04381

International Designator

1970-035B

Decay Date

5/17/1970

Basic Satellite Info

Name

SL-7 R/B

Alternative Name

Kosmos-2 (N59) 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 3 Jul 2025

Space Brief 3 Jul 2025

Today's coverage includes the cancellation of DARPA's DRACO nuclear propulsion project, global shifts in Earth observation strategy, and new developments in satellite technology and military collaborations.

Congress Passes FY2026 Bill Reinstating NASA Funding, Slingshot Wins $27M AI Contract | KeepTrack Space Brief

Congress Passes FY2026 Bill Reinstating NASA Funding, Slingshot Wins $27M AI Contract | KeepTrack Space Brief

Congress passes FY2026 spending bill reinstating NASA funding. Slingshot Aerospace wins $27M Space Force contract for AI satellite training. Portal Space selects Atomic-6 debris shield for 2026 mission.

SpaceX Launches NROL-105 Spy Satellite in First 2026 National Security Mission | KeepTrack X Report

SpaceX Launches NROL-105 Spy Satellite in First 2026 National Security Mission | KeepTrack X Report

SpaceX launches NROL-105 spy satellite from Vandenberg — first national security mission of 2026. Crew-11 astronauts arrive in Houston after historic first-ever ISS medical evacuation.

SpaceX Preps Starlink 6-96 Launch, Starship TPS Testing Continues at Starbase | KeepTrack X Report

SpaceX Preps Starlink 6-96 Launch, Starship TPS Testing Continues at Starbase | KeepTrack X Report

SpaceX readies Starlink 6-96 launch of 29 satellites from Cape Canaveral. Thermal Protection System evaluations underway at Starbase for next Starship prototypes. SpaceX IPO expected to reshape market.

The Day We First Landed on Venus

The Day We First Landed on Venus

On December 15, 1970, a battered Soviet probe accomplished something no spacecraft had done before - it survived landing on another world and lived to tell about it.

Space Brief 4 Jun 2025

Space Brief 4 Jun 2025

Key developments include China's Shijian 26 satellite launch, U.S. Space Force's BAE Systems contract for missile-tracking satellites, and military advancements in space systems.

The Farming Satellite Iran Can't Launch Itself

The Farming Satellite Iran Can't Launch Itself

Iran calls Kowsar 1.5 a private-sector farming satellite. Its 3.45-meter camera, its sun-synchronous orbit, and the Russian rocket that carried it point somewhere else entirely.

Pentagon Reveals Space & Cyber "First Mover" Role in Iran Operations | KeepTrack Space Brief

Pentagon Reveals Space & Cyber "First Mover" Role in Iran Operations | KeepTrack Space Brief

Space & Cyber Command disrupted Iran ops as US munition stockpiles drop. Space Force shifts to commercial ground stations & faces acquisition workforce gaps.