SL-4 R/B (23602)

COSPAR: 1995-031B | Alt Name: Soyuz-U-PVB 31-506 Blok-I
DECAYED

Image
SL-4 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

June 28, 1995

Launch Site

PLMSC

Launch Pad

LC43/3

Launch Vehicle

Soyuz-U-PVB

Orbital Elements

NORAD ID

23602

International Designator

1995-031B

Decay Date

7/4/1995

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz-U-PVB 31-506 Blok-I

Type

Rocket Body

Status

Space Junk

Owner

RVSNR

Country

Russia

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

6.7

Diameter

2.7

Span

6.7

Dry Mass

2350

Launch Mass

2350

Shape

Cyl

Radar Cross Section

12

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

11S510

Purpose

Unknown

Mission

Unknown

Manufacturer

PROG

Life Expectancy

Unknown

Bus

Blok-I

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 May 2025

Space Brief 21 May 2025

Today's Space Brief covers significant events including a high-stakes missile defense program, recent Chinese satellite launches, military defense initiatives, and key profiles in defense leadership.

Rocket Lab Neutron Targets Q4 2026 Debut, Space Brief 9 May 2026

Rocket Lab Neutron Targets Q4 2026 Debut, Space Brief 9 May 2026

Rocket Lab Neutron's first launch is targeted for Q4 2026 after a tank test failure, backed by a new 5-launch deal. Plus Globalstar's 1,410 km refresh.

NordSpace Atlantic Spaceport Complex

NordSpace Atlantic Spaceport Complex

Canada's sovereign space access finally has a construction site. How NordSpace is building the Atlantic Spaceport Complex in Newfoundland - and what the scrubbed Taiga launch reveals about the path to orbit.

Space Brief 11 Sep 2025

Space Brief 11 Sep 2025

Key updates today focus on SpaceX's latest satellite launch for the U.S. military, critical space resource assessments by the U.S. Space Force, and new developments in space infrastructure and equipment for defense operations.

X Report 22 Mar 2025

X Report 22 Mar 2025

SpaceX achieves its 450th Falcon 9 launch, setting a new turnaround record, while its competitor ULA remains grounded, awaiting clearance from the Space Force.

Space Brief 15 Dec 2025

Space Brief 15 Dec 2025

Today's highlights include multiple SpaceX Starlink launches, a successful Rocket Lab mission for JAXA, and a scheduled launch update from Kennedy Space Center.

X Report 7 Oct 2025

X Report 7 Oct 2025

SpaceX successfully launched 28 Starlink satellites on October 7, further expanding its broadband constellation while hosting an active launch schedule this week.

Space Brief 22 Nov 2025

Space Brief 22 Nov 2025

Today's brief covers Blue Origin's national security mission, a new missile interceptor project by Space Force, developments with Starship boosters, and more.