SL-8 DEB (21936)

COSPAR: 1991-009CD | 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

21936

International Designator

1991-009CD

Epoch

Sat, 04 Jul 2026 00:25:51 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

74.06°

Right Ascension

41.67°

Eccentricity

Calculating...

Argument of Perigee

173.93°

Period

119.88 min

Mean Motion

12.01 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

Russia

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 21936U 91009CD  26185.01796010  .00000194  00000-0  22926-2 0  9993
2 21936  74.0628  41.6693 0262971 173.9272 339.2009 12.01230506510773

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

0.0445

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.

Space Brief 5 Sep 2025

Space Brief 5 Sep 2025

Today's Space Brief delves into key military developments in space, including the Space Force's pioneering officer training and innovative small satellite communication strategies.

X Report 7 Mar 2025

X Report 7 Mar 2025

Starship Flight 8 ends with mixed results as SpaceX successfully catches Super Heavy booster but loses the upper stage in a fiery breakup.

Space Brief 18 Sep 2024

Space Brief 18 Sep 2024

Today's Space Brief covers Rocket Lab's IoT satellite launch, SpaceX's European Galileo satellites, FAA's fine on SpaceX, Polaris Dawn mission achievements, and more.

Firefly Alpha Returns to Flight After Anomaly | KeepTrack Space Brief

Firefly Alpha Returns to Flight After Anomaly | KeepTrack Space Brief

Firefly Aerospace launches return-to-flight Firefly Alpha on March 10 after Flight 6 anomaly. SpaceX also launches EchoStar 25 GEO satellite and multiple Starlink batches this week.

Air Force Selects General Atomics, Anduril for CCA Wingmen | KeepTrack Space Brief

Air Force Selects General Atomics, Anduril for CCA Wingmen | KeepTrack Space Brief

Air Force awards CCA contracts to General Atomics and Anduril for autonomous fighter wingmen. Autonomy layer split across Anduril, Shield AI, and Collins Aerospace.

X Report 16 Jul 2025

X Report 16 Jul 2025

SpaceX successfully launched another batch of Starlink satellites while marking a significant milestone with the 500th Falcon 9 mission. Additionally, the company is preparing for further testing of its Starship system and has begun collaborating with Amazon on their Project Kuiper constellation.

Space Brief 3 Sep 2024

Space Brief 3 Sep 2024

Today's brief covers China's Yaogan-43 satellite launch, delays in ESA's BepiColombo mission, regulatory approval for OHB's KKR deal, and an upcoming Sentinel-2C launch.

NRO Expands Commercial Satellite Role to Airborne Target Tracking | KeepTrack Space Brief

NRO Expands Commercial Satellite Role to Airborne Target Tracking | KeepTrack Space Brief

NRO awards three commercial data contracts and explores vetting satellite firms for airborne target tracking via U.S. Space Force. Strategic expansion of GEOINT capabilities.