SL-8 DEB (21165)

COSPAR: 1991-009AC | Alt Name: deb S3M

Image
SL-8 DEB Satellite Image
Additional Sources
Launch Details

Launch Date

February 12, 1991

Launch Site

PLMSC

Launch Pad

LC133/3

Launch Vehicle

Kosmos 11K65M

Orbital Elements

NORAD ID

21165

International Designator

1991-009AC

Epoch

Sat, 04 Jul 2026 05:59:27 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

74.16°

Right Ascension

165.24°

Eccentricity

Calculating...

Argument of Perigee

23.30°

Period

118.80 min

Mean Motion

12.12 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

SL-8 DEB

Alternative Name

deb S3M

Type

Debris

Status

Space Junk

Owner

RVSN

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 21165U 91009AC  26185.24961919  .00000110  00000-0  12639-2 0  9992
2 21165  74.1601 165.2421 0159857  23.3044 350.0911 12.12151265563142

Source: Celestrak

Summary
Space debris, also known as space junk, encompasses all non-functional objects orbiting Earth such as defunct satellites, spent rocket stages, and fragments from collisions or disintegrations. Over time, this debris can accumulate and create an increasingly hazardous environment in orbit. Even tiny fragments, traveling at extremely high velocities, can inflict significant damage on operational satellites and spacecraft. If left unmanaged, the density of debris raises the risk of catastrophic collisions and further fragmentation, compounding the problem and threatening the safety and sustainability of space activities.
Physical Characteristics

Length

0

Diameter

0

Span

0

Dry Mass

0

Launch Mass

0

Shape

N/A

Radar Cross Section

0.1761

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Unknown

Purpose

Unknown

Mission

Unknown

Manufacturer

Unknown

Life Expectancy

Unknown

Bus

Unknown

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.
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.

X Report 11 Mar 2025

X Report 11 Mar 2025

A week of highs and lows for SpaceX, including weather-related delays and a return to Falcon launches.

Space Brief 31 Aug 2025

Space Brief 31 Aug 2025

SpaceX makes headlines with dual Starlink launches, Rocket Lab inaugurates new launch complex, while AI's impact on space missions and satellite technology continues to stir discussions.

Space Brief 31 Jul 2025

Space Brief 31 Jul 2025

Today's Space Brief brings updates on the U.S. Space Force's upcoming missions, in-space technology strategies, the challenges faced by new launchers, and advancements in satellite communication.

Space Brief 19 Jun 2025

Space Brief 19 Jun 2025

Discover key developments in space defense and military operations, including new leadership for Space Force's 'Golden Dome,' SpaceX's contract for a military SATCOM network, and increased Israeli-Iranian missile activity.

Space Force Awards $3.2B for Orbital Missile Interceptors | KeepTrack Space Brief

Space Force Awards $3.2B for Orbital Missile Interceptors | KeepTrack Space Brief

Space Force awards $3.2 billion to 12 companies for Golden Dome boost-phase missile interceptor prototypes. Initial operational capability targeted for 2028.

X Report 9 Jan 2025

X Report 9 Jan 2025

Exciting advancements from SpaceX as Starshield satellites prepare for launch, Starship Flight 7 faces a short delay, and new Starlink satellites enter orbit.

X Report 6 Feb 2025

X Report 6 Feb 2025

SpaceX prepares for a new cargo-return mission with Atmos, deploys imaging satellites, and gears up for Axiom-4 private astronaut launch.

Space Brief 8 Aug 2025

Space Brief 8 Aug 2025

Today's brief highlights significant shifts in military space spending due to the Golden Dome program, the U.S. Space Force's advancements in tactical satellite communications, and NASA's race to nuclear power in space.