SL-12 R/B(2) (20502)

COSPAR: 1990-016D | Alt Name: Blok DM-2 No. 41L

Image

Additional Sources

Launch Details

Launch Date

February 15, 1990

Launch Site

Tyuratam Missile and Space Complex

Launch Pad

LC81/23

Launch Vehicle

Proton-K/DM-2

Orbital Elements

NORAD ID

20502

International Designator

1990-016D

Epoch

Sat, 04 Jul 2026 01:13:49 GMT

Apogee

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Perigee

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Inclination

12.45°

Right Ascension

335.09°

Eccentricity

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Argument of Perigee

245.90°

Period

1439.69 min

Mean Motion

1.00 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-12 R/B(2)

Alternative Name

Blok DM-2 No. 41L

Type

Rocket Body

Status

Space Junk

Owner

RVSN

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs

1 20502U 90016D   26185.05127251  .00000110  00000-0  00000-0 0  9992

2 20502  12.4456 335.0896 0040806 245.9042 296.6473  1.00021561132932

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

6.3

Diameter

3.7

Span

6.3

Dry Mass

2440

Launch Mass

17490

Shape

Cyl

Radar Cross Section

3.9811

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

11S861 No. 41L

Purpose

Unknown

Mission

Unknown

Manufacturer

NPOE

Life Expectancy

Unknown

Bus

Blok DM

Configuration

Unknown

Motor

Unknown

Equipment

Unknown

Power System

Unknown

ADCS

Unknown

Transmitter Frequency

Unknown

Map

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