SL-7 R/B (00866)

COSPAR: 1964-050B | Alt Name: Kosmos 63S1 (N23) Stage 2
DECAYED

Image
SL-7 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

August 22, 1964

Launch Site

KYMSC

Launch Pad

Mayak-2

Launch Vehicle

Kosmos 63S1

Orbital Elements

NORAD ID

00866

International Designator

1964-050B

Decay Date

8/2/1965

Basic Satellite Info

Name

SL-7 R/B

Alternative Name

Kosmos 63S1 (N23) Stage 2

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

8

Diameter

1.6

Span

8

Dry Mass

840

Launch Mass

840

Shape

Cyl

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

S1

Purpose

Unknown

Mission

Unknown

Manufacturer

YUZH

Life Expectancy

Unknown

Bus

S1

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.

X Report 26 Nov 2025

X Report 26 Nov 2025

This edition highlights SpaceX's ambitious plans for Starship in light of recent developments, a busy launch week featuring multiple missions, and the latest updates on Starlink's operational status.

1 Million AI Data Centers in Orbit Threaten Astronomy | KeepTrack X Report

1 Million AI Data Centers in Orbit Threaten Astronomy | KeepTrack X Report

SpaceX's proposed 1-million-satellite AI data center constellation alarms astronomers as Falcon 9 logs its 25th Starlink launch of 2026.

X Report 28 Jun 2025

X Report 28 Jun 2025

SpaceX continues to dominate with two Starlink launches in one day, the unveiling of its final Crew Dragon, and facing legal challenges from Mexico regarding a recent Starship incident.

Space Brief 28 Aug 2025

Space Brief 28 Aug 2025

Today's briefing covers collaborations enhancing defense capabilities, new satellite technologies entering the market, and strategic shifts in military satellite applications.

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.

Musk Denies SpaceX AI Phone Report; EchoStar Bankruptcy | KeepTrack X Report

Musk Denies SpaceX AI Phone Report; EchoStar Bankruptcy | KeepTrack X Report

SpaceX hits 77 Falcon 9 launches in 2026 as EchoStar subsidiaries file Chapter 11 and Musk disputes WSJ AI phone claims.

Version 10.0.0 Release Notes

Version 10.0.0 Release Notes

The latest update introduces 3D satellite FOV cones, advanced sensor capabilities, and enhanced timelines, improving the way users interact with satellite data.

FAA Grounds Starship V3 for Mishap Probe, X Report 29 May 2026

FAA Grounds Starship V3 for Mishap Probe, X Report 29 May 2026

FAA grounds Starship pending a mishap investigation into the V3 debut flight; return to flight hinges on FAA sign-off. Starlink 10-53 added 29 sats.