SL-8 R/B (04139)

COSPAR: 1969-091B | Alt Name: Kosmos-3M Yu226-11U Stage 2

Image

Additional Sources

Launch Details

Launch Date

October 21, 1969

Launch Site

PLMSC

Launch Pad

LC132/1

Launch Vehicle

Kosmos 11K65M

Orbital Elements

NORAD ID

04139

International Designator

1969-091B

Epoch

Sat, 04 Jul 2026 01:55:39 GMT

Apogee

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Perigee

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Inclination

74.03°

Right Ascension

240.55°

Eccentricity

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Argument of Perigee

222.55°

Period

98.19 min

Mean Motion

14.67 rev/day

Latitude

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Longitude

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Altitude

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Velocity

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Polar Plot

3D Visualization

Basic Satellite Info

Name

SL-8 R/B

Alternative Name

Kosmos-3M Yu226-11U Stage 2

Type

Rocket Body

Status

Space Junk

Owner

RVSN

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs

1 04139U 69091B   26185.08032019  .00000553  00000-0  10519-3 0  9999

2 04139  74.0303 240.5542 0005684 222.5490 137.5239 14.66613418 12165

Source: Celestrak

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

4.2

Diameter

2.4

Span

4.2

Dry Mass

1434

Launch Mass

1434

Shape

Cyl

Radar Cross Section

3.532

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

S3M

Purpose

Unknown

Mission

Unknown

Manufacturer

YUZH

Life Expectancy

Unknown

Bus

Configuration

Unknown

Motor

Unknown

Equipment

Unknown

Power System

Unknown

ADCS

Unknown

Transmitter Frequency

Unknown

Map

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