SL-4 R/B (25430)

COSPAR: 1998-047B | Alt Name: Soyuz-U-PVB No. 658 Blok-I
DECAYED

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

Launch Date

August 13, 1998

Launch Pad

LC1

Launch Vehicle

Soyuz-U-PVB

Orbital Elements

NORAD ID

25430

International Designator

1998-047B

Decay Date

8/15/1998

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz-U-PVB No. 658 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

5.01

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

11S510

Purpose

Unknown

Mission

Unknown

Manufacturer

PROGT

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.

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.

X Report 10 Jun 2025

X Report 10 Jun 2025

Exciting advancements from SpaceX include the debut of a new Dragon capsule for Axiom Space, continued Starlink deployments, and significant shifts in U.S. rural broadband funding that could benefit Starlink.

X Report 29 Nov 2024

X Report 29 Nov 2024

SpaceX advances Starship development while planning future replacements for Falcon and Dragon.

Space Force Awards First-Ever $52M Satellite Deorbit Contract to Starfish Space | KeepTrack Space Brief

Space Force Awards First-Ever $52M Satellite Deorbit Contract to Starfish Space | KeepTrack Space Brief

Space Force awards first-of-its-kind $52M contract to Starfish Space for deorbiting defunct satellites. AST SpaceMobile selected for Missile Defense Agency SHIELD program. $26B Space Force budget confirmed.

Rocket Lab Neutron Books 5 Launches, Space Brief 8 May 2026

Rocket Lab Neutron Books 5 Launches, Space Brief 8 May 2026

Rocket Lab Neutron launch schedule holds at Q4 2026 for the first flight as a five-launch contract lands; barge recovery starts on flight two.

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.

X Report 27 Sep 2025

X Report 27 Sep 2025

SpaceX continues to make strides in both its Starship program and Starlink satellite deployments, with a successful launch of 24 Starlink satellites and preparations for upcoming missions.

X Report 6 Jun 2025

X Report 6 Jun 2025

Today's SpaceX Brief highlights the imminent launch of the Ax-4 mission, notable milestones in Falcon rocket history, and the impact of political tensions on SpaceX operations.