SL-6 R/B(1) (15978)

COSPAR: 1985-074B | Alt Name: Molniya-M 32-664 Blok-I
DECAYED

Image
SL-6 R/B(1) Satellite Image
Additional Sources
Launch Details

Launch Date

August 22, 1985

Launch Site

PLMSC

Launch Pad

LC41/1

Launch Vehicle

Molniya 8K78M

Orbital Elements

NORAD ID

15978

International Designator

1985-074B

Decay Date

11/4/1985

Basic Satellite Info

Name

SL-6 R/B(1)

Alternative Name

Molniya-M 32-664 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

6.7

Diameter

2.7

Span

6.7

Dry Mass

2350

Launch Mass

2350

Shape

Cyl

Radar Cross Section

49.17

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 25 Oct 2024

Space Brief 25 Oct 2024

Today's highlights include Crew-8's return amid weather delays, new space tourism announcements by Deep Blue Aerospace, and Europe's efforts to combat space debris. Plus, another successful SpaceX launch and the ESA backed Zero Debris Charter gains international traction.

Crew-11 Emergency Evacuation Raises Space Rescue Alarm | KeepTrack X Report

Crew-11 Emergency Evacuation Raises Space Rescue Alarm | KeepTrack X Report

SpaceX Crew-11 made an emergency return from the ISS on Jan. 15 after a medical crisis, spotlighting gaps in space rescue infrastructure.

The Morning a Supply Ship Tore Open Mir

The Morning a Supply Ship Tore Open Mir

On 25 June 1997, a seven-ton cargo ship under hand control drifted into Mir's Spektr module, breached the hull, and left three crew members listening to their air hiss into space. It remains the worst collision in the history of human spaceflight.

X Report 18 Jul 2025

X Report 18 Jul 2025

Elon Musk provided updates on the anticipated Starship Flight 10, along with insights on SpaceX's progress at Cape Canaveral. Key developments include target timelines for upcoming launches and ongoing efforts in Starship's development.

X Report 8 May 2025

X Report 8 May 2025

SpaceX launches 28 more Starlink satellites while addressing conflicts of interest and expanding home connectivity with a new router.

Vandenberg Set to Overtake All Sites as SpaceX Pivots from Falcon 9 | KeepTrack X Report

Vandenberg Set to Overtake All Sites as SpaceX Pivots from Falcon 9 | KeepTrack X Report

SpaceX shifts launch priorities to Vandenberg as Falcon 9 era winds down, while Anthropic signs orbital data center deal with the company.

X Report 6 Oct 2025

X Report 6 Oct 2025

SpaceX gears up for its 11th Starship test flight, while Starlink expands connectivity through partnerships with T-Mobile, enhancing app functionality beyond cellular coverage.

Space Brief 10 Sep 2025

Space Brief 10 Sep 2025

Today's highlights include China's launch of a mystery spysat, Maxar's terrain data for U.S. Army systems, and multiple U.S. defense firms enhancing satellite capabilities.