SL-4 R/B (23216)

COSPAR: 1994-052B | Alt Name: Soyuz-U No. 636 Blok-I
DECAYED

Image
SL-4 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

August 25, 1994

Launch Pad

LC1

Launch Vehicle

Soyuz-U

Orbital Elements

NORAD ID

23216

International Designator

1994-052B

Decay Date

8/27/1994

Basic Satellite Info

Name

SL-4 R/B

Alternative Name

Soyuz-U No. 636 Blok-I

Type

Rocket Body

Status

Space Junk

Owner

RVSNR

Country

Russia

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

Unknown

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 5 Apr 2025

Space Brief 5 Apr 2025

Today's brief covers the new Space Force operations doctrine, international defense collaborations by the UAE, and satellite tracking technology innovations.

Space Brief 20 Oct 2025

Space Brief 20 Oct 2025

Today's Space Brief highlights Innospace's upcoming orbital launch, SpaceX's record-setting Starlink mission, China's Thousand Sails constellation, Atomic-6's new space armor, and developments in SpaceX's West Coast facilities.

Space Brief 3 Apr 2025

Space Brief 3 Apr 2025

Dive into the latest developments including U.S. national security launch contracts, penalties for drone violations at military bases, and emerging European launch providers.

Space Brief 9 Dec 2024

Space Brief 9 Dec 2024

Highlights include China's rising threats in space, a new Starlink launch, NASA's optimistic future, and a cosmic conjunction featuring the Moon and Saturn.

MDA Space Buys Blue Canyon for $620M, Space Brief 20 Jun 2026

MDA Space Buys Blue Canyon for $620M, Space Brief 20 Jun 2026

MDA Space acquires Blue Canyon Technologies for $620 million, and NASA's 2028 Aeolus Mars orbiter goes to a California startup instead of SpaceX.

X Report 8 Feb 2025

X Report 8 Feb 2025

SpaceX makes strides on Starship launch pad, upcoming Starlink infusions from California and Florida, and regulatory challenges loom with FCC and C-band spectrum.

Jonathan's Space Report

Jonathan's Space Report

Jonathan's Space Report is a comprehensive resource for space launch and satellite data, compiled by astrophysicist Dr. Jonathan McDowell.

X Report 4 Aug 2025

X Report 4 Aug 2025

SpaceX achieves significant milestones with the launch of 28 Starlink satellites and the final landing of the LZ-1 pad, marking key moments in their ongoing mission to expand satellite connectivity.