SL-7 R/B (00633)

COSPAR: 1963-033B | Alt Name: Kosmos 63S1 (N15) Stage 2
DECAYED

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

Launch Date

August 6, 1963

Launch Site

KYMSC

Launch Pad

Mayak-2

Launch Vehicle

Kosmos 63S1

Orbital Elements

NORAD ID

00633

International Designator

1963-033B

Decay Date

12/8/1963

Basic Satellite Info

Name

SL-7 R/B

Alternative Name

Kosmos 63S1 (N15) 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

OKB586

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.

Space Brief 6 Aug 2025

Space Brief 6 Aug 2025

Highlights of today's Space Brief include advancements in missile defense systems, a historic lunar project by NASA, and strategic military investments in satellite technology.

Space Brief 17 Jun 2025

Space Brief 17 Jun 2025

Today's space brief covers key developments in satellite monitoring, U.K. defense contracts, and critical licensing reforms supporting national security.

China Launches VLEO Alliance With Sats Below 300km | KeepTrack Space Brief

China Launches VLEO Alliance With Sats Below 300km | KeepTrack Space Brief

China formalized a national VLEO industry alliance with multiple satellites sustaining operations below 300 kilometers altitude. Propulsion startups attracting investment.

Space Brief 28 Nov 2024

Space Brief 28 Nov 2024

Today's briefing covers China's announcement of the Beidou system upgrade, launch updates for Vega C, challenges to global GPS reliability, and delays in the VERITAS Venus mission.

X Report 4 May 2025

X Report 4 May 2025

Today's brief highlights the successful launch of 29 Starlink satellites, progress on the Starship fleet, and ongoing adjustments in SpaceX's launch schedules.

X Report 23 Nov 2024

X Report 23 Nov 2024

SpaceX advances with Starship tests as Starlink continues global expansion. Key infrastructure updates from Cape Canaveral involve multiple industry players.

Space Brief 11 Dec 2025

Space Brief 11 Dec 2025

Today's brief highlights key developments in space technology, military space activities, and satellite refueling initiatives. Discover the latest on GEO satellite refueling, Blue Origin's New Glenn, and more.

Space Brief 29 Oct 2024

Space Brief 29 Oct 2024

Today's space brief covers an impressive SpaceX launch record, China's upcoming crew mission to its space station, an Intelsat 33e debris observation, and more. Key topics include SpaceX's Starship events, ESA's Hera mission updates, and Boeing's potential space division sale.