SL-12 R/B(2) (18446)

COSPAR: 1987-091D | Alt Name: Blok DM-2 No. 28L

Image

Additional Sources

Launch Details

Launch Date

October 28, 1987

Launch Site

Tyuratam Missile and Space Complex

Launch Pad

LC200/40

Launch Vehicle

Proton-K/DM-2

Orbital Elements

NORAD ID

18446

International Designator

1987-091D

Epoch

Fri, 03 Jul 2026 23:55:38 GMT

Apogee

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Perigee

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Inclination

10.76°

Right Ascension

325.62°

Eccentricity

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Argument of Perigee

266.72°

Period

1437.36 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. 28L

Type

Rocket Body

Status

Space Junk

Owner

RVSN

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs

1 18446U 87091D   26184.99697550 -.00000359  00000-0  00000-0 0  9997

2 18446  10.7644 325.6218 0022169 266.7213 168.9344  1.00183978130175

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

2.5119

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

11S861 No. 28L

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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