SL-3 R/B (03142)

COSPAR: 1968-016B | Alt Name: Voskhod (N55) Blok-I
DECAYED

Image
SL-3 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

March 5, 1968

Launch Site

PLMSC

Launch Pad

LC41/1

Launch Vehicle

Voskhod 11A57

Orbital Elements

NORAD ID

03142

International Designator

1968-016B

Decay Date

3/9/1968

Basic Satellite Info

Name

SL-3 R/B

Alternative Name

Voskhod (N55) Blok-I

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

9.4

Diameter

2.7

Span

9.4

Dry Mass

3000

Launch Mass

3000

Shape

Cyl

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

11A57I

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 11 Aug 2025

Space Brief 11 Aug 2025

Today's briefing highlights major advancements in tactical satellite communications for military applications, the expansion of an IoT satellite constellation by China's Geespace, and significant developments in lunar communications and surveillance systems.

Space Brief 18 Nov 2025

Space Brief 18 Nov 2025

Key updates on strategic military shifts, technological advancements, and a critical replacement mission for Chinese astronauts highlight today's space news.

Space Force Requests $1.6B for New LEO Relay Network | KeepTrack Space Brief

Space Force Requests $1.6B for New LEO Relay Network | KeepTrack Space Brief

Space Force scraps SDA transport layer, requests $1.6 billion for proliferated LEO SATCOM constellation. Roger Mason nominated to lead NRO.

X Report 20 Mar 2025

X Report 20 Mar 2025

SpaceX successfully rotates Crew-9 and Crew-10 on the ISS and launches new Starlink satellites with direct-to-cell capability.

SpaceX Eyes $60B Cursor AI Acquisition Ahead of IPO | KeepTrack X Report

SpaceX Eyes $60B Cursor AI Acquisition Ahead of IPO | KeepTrack X Report

SpaceX secured a $60B option to acquire Cursor AI while launching its 40th Falcon 9 mission of 2026, deploying 24 more Starlink satellites from Vandenberg.

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.

SpaceX Preps Seventh Starlink Launch of 2026 With 25 Satellites | KeepTrack X Report

SpaceX Preps Seventh Starlink Launch of 2026 With 25 Satellites | KeepTrack X Report

SpaceX readies Starlink 17-20 launch of 25 satellites to polar orbit from Vandenberg pad 4E — seventh Starlink mission of the year. 11,009 total Starlink satellites launched to date.

X Report 16 Jun 2025

X Report 16 Jun 2025

SpaceX progresses with plans for Starship launches from a ULA site while continuing its Starlink expansion. New satellite tracking update enhances user engagement.