SL-6 R/B(2) (15156)

COSPAR: 1984-079D | Alt Name: Blok-2BL
DECAYED

Image
SL-6 R/B(2) Satellite Image
Additional Sources
Launch Details

Launch Date

August 2, 1984

Launch Site

PLMSC

Launch Pad

LC16/2

Launch Vehicle

Molniya 8K78M

Orbital Elements

NORAD ID

15156

International Designator

1984-079D

Decay Date

11/6/2009

Basic Satellite Info

Name

SL-6 R/B(2)

Alternative Name

Blok-2BL

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

3.3

Diameter

2.3

Span

3.3

Dry Mass

900

Launch Mass

4500

Shape

Cyl

Radar Cross Section

3.9811

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Blok-2BL No. 59

Purpose

Unknown

Mission

Unknown

Manufacturer

NPOE

Life Expectancy

Unknown

Bus

Blok-L

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 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.

Musk Locks In SpaceX Control With Trillion-Dollar Stake | KeepTrack X Report

Musk Locks In SpaceX Control With Trillion-Dollar Stake | KeepTrack X Report

Elon Musk moves to make himself unfireable at SpaceX as AT&T, T-Mobile, and Verizon back a rival D2D joint venture challenging Starlink Mobile.

Space Brief 9 Aug 2025

Space Brief 9 Aug 2025

Today's briefing covers SpaceX's latest Starlink launch, Rocket Lab's upcoming Neutron rocket launch, NASA's lunar nuclear reactor project, and more.

Space Force Opens Cape Canaveral and Vandenberg Pads to New Launch Providers | KeepTrack Space Brief

Space Force Opens Cape Canaveral and Vandenberg Pads to New Launch Providers | KeepTrack Space Brief

Space Force issues call for launch providers at Cape Canaveral and Vandenberg. Vandenberg opens Space Launch Complex 14 bidding with Feb 12 deadline. Electra pitches hybrid aircraft to Pentagon.

Falcon 9 Booster Flies 35th Mission, Deploys 29 Starlinks | KeepTrack X Report

Falcon 9 Booster Flies 35th Mission, Deploys 29 Starlinks | KeepTrack X Report

SpaceX flew a Falcon 9 booster for a record 35th time on July 10, deploying 29 Starlink satellites as direct-to-cell tech expands to pet collars.

SpaceX Orbital Data Center Plans Draw Astronomer Fury | KeepTrack X Report

SpaceX Orbital Data Center Plans Draw Astronomer Fury | KeepTrack X Report

SpaceX's orbital data center constellation and TERAFAB's $25B AI chip factory spark backlash as Starlink surpasses 10,116 working satellites.

X Report 28 Feb 2025

X Report 28 Feb 2025

SpaceX postpones Starship Flight 8, successfully launches Starlink satellites and two lunar missions.

Space Brief 18 Nov 2024

Space Brief 18 Nov 2024

Today's brief highlights a Starlink satellite launch, an OpTech optical sensor contract for the Space Force, and a unique STEM experiment involving space-flown seeds.