SL-8 R/B (17240)

COSPAR: 1986-100B | Alt Name: Kosmos-3M 72-353 Stage 2

Image

Additional Sources

Launch Details

Launch Date

December 17, 1986

Launch Site

PLMSC

Launch Pad

LC132/1

Launch Vehicle

Kosmos 11K65M

Orbital Elements

NORAD ID

17240

International Designator

1986-100B

Epoch

Sat, 04 Jul 2026 05:32:53 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

82.93°

Right Ascension

120.48°

Eccentricity

Calculating...

Argument of Perigee

19.27°

Period

104.78 min

Mean Motion

13.74 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot

3D Visualization

Basic Satellite Info

Name

SL-8 R/B

Alternative Name

Kosmos-3M 72-353 Stage 2

Type

Rocket Body

Status

Space Junk

Owner

RVSN

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs

1 17240U 86100B   26185.23117265  .00000053  00000-0  40430-4 0  9991

2 17240  82.9323 120.4768 0030249  19.2653 142.4010 13.74298240623682

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

4.219

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

S3M

Purpose

Unknown

Mission

Unknown

Manufacturer

OAZ

Life Expectancy

Unknown

Bus

Configuration

Unknown

Motor

Unknown

Equipment

Unknown

Power System

Unknown

ADCS

Unknown

Transmitter Frequency

Unknown

Map

This tool will help you track the satellite's position and predict its upcoming passes over your location. Simply input the coordinates or click the geolocation button to get started.

Latitude

Longitude

Next Pass

Azimuth Elevation Time (Local)

Start Azimuth

Max Elevation

Stop Azimuth

Time Until

Pass Duration

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

Crew-12 Launches, Falcon 9 Makes First Landing at New LZ-40 Pad | KeepTrack X Report

SpaceX launches Crew-12 to ISS and lands Falcon 9 booster at new LZ-40 pad for the first time. xAI restructures $18B in debt ahead of possible IPO. 6,000 Starlink terminals smuggled into Iran.

New Glenn Achieves First Booster Reuse on Mission 3 | KeepTrack Space Brief

Blue Origin's New Glenn successfully reused its first stage booster for the first time on Mission 3, launching April 19. Booster reuse accelerates operational tempo.

10,168 Starlink Satellites in Orbit, X Report 6 Apr 2026

Current number of Starlink satellites in orbit April 2026: 10,168 working of 10,177 tracked, 11,724 launched. Fleet health tops 99.9%.

House Backs $55.5B Space Force Budget, Excludes $350B Reconciliation | KeepTrack Space Brief

House appropriators approved $55.5 billion for Space Force but omitted $350 billion reconciliation funds, threatening Golden Dome and large-scale space programs' acquisition timelines.

Rheinmetall Weighs Bid for Mynaric Amid Rocket Lab Acquisition | KeepTrack Space Brief

German defense giant Rheinmetall may bid for laser-comm firm Mynaric, challenging Rocket Lab's plans. SpaceX sets Falcon 9 reuse record. Juno reveals Europa ice sheet data.

Space Brief 8 Jul 2025

Today's highlights include the cancellation of Starship landing plans, Planet Labs' defense expansion, and cutting-edge radiation-hardened tech for space and defense.

Space Brief 1 Aug 2025

Today's Space Brief covers a crucial weather data decision by the U.S. Defense Department, an innovative power supply for aerospace systems, advancements in satellite link technology, and Norway's maritime surveillance. AI/ML tools for airspace management and concerns about defense testing capabilities are also highlighted.

Space Brief 28 Oct 2025

Today's brief covers China's Gaofen-14 satellite launch, Europe's advancements in asteroid defense through GomSpace, and Russia's controversial Burevestnik missile test.