SL-8 R/B (25893)

COSPAR: 1999-045B | Alt Name: Kosmos-3M 21-703 Stage 2

Image
SL-8 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

August 26, 1999

Launch Site

PLMSC

Launch Pad

LC132/1

Launch Vehicle

Kosmos 11K65M

Orbital Elements

NORAD ID

25893

International Designator

1999-045B

Epoch

Sat, 04 Jul 2026 04:45:24 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

82.93°

Right Ascension

84.67°

Eccentricity

Calculating...

Argument of Perigee

213.08°

Period

104.59 min

Mean Motion

13.77 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 21-703 Stage 2

Type

Rocket Body

Status

Space Junk

Owner

RVSNR

Country

Russia

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 25893U 99045B   26185.19819809  .00000092  00000-0  78279-4 0  9999
2 25893  82.9260  84.6746 0027728 213.0794 300.6207 13.76852340349231

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

20143

Shape

Cyl

Radar Cross Section

4.3764

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

S3M

Purpose

Unknown

Mission

Unknown

Manufacturer

POL

Life Expectancy

Unknown

Bus

S3

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 16 May 2025

Space Brief 16 May 2025

Today's brief covers challenges in Space Force procurement, promising developments in tracking technologies, and significant budget cuts affecting military aerospace projects.

X Report 15 Feb 2025

X Report 15 Feb 2025

SpaceX sets a reuse record with Falcon 9, advances Starship program, while Starlink influences satellite market dynamics.

X Report 9 Nov 2024

X Report 9 Nov 2024

SpaceX successfully launches a new batch of Starlink satellites, while Viasat seeks LEO capacity amid rising competition.

Space Brief 30 Oct 2025

Space Brief 30 Oct 2025

Today's brief explores rising investments in space with defense ties, potential Space Force-NRO coordination, and more, offering insight into current military and defense satellite dynamics.

SpaceX Accuses Amazon of Debris Violations at FCC | KeepTrack X Report

SpaceX Accuses Amazon of Debris Violations at FCC | KeepTrack X Report

SpaceX filed an FCC complaint against Amazon over orbital debris violations as Starship V3 gets a maiden voyage date and a $178.5M Space Force deal lands.

X Report 4 Sep 2025

X Report 4 Sep 2025

SpaceX conducted multiple successful launches this week, adding to its Starlink constellation and marking significant milestones in its ongoing missions.

FAA Advances Approval for 44 Starship Launches From Pad 39A | KeepTrack X Report

FAA Advances Approval for 44 Starship Launches From Pad 39A | KeepTrack X Report

FAA advances environmental review for up to 44 Starship launches from Kennedy Space Center pad 39A. SpaceX wraps January with dual-coast Starlink launches. Crew-12 timeline tied to Artemis 2 schedule.

SpaceX Launches 2 Starlink Batches in 48 Hours, Both Coasts | KeepTrack X Report

SpaceX Launches 2 Starlink Batches in 48 Hours, Both Coasts | KeepTrack X Report

SpaceX launched Starlink batches from Vandenberg and Cape Canaveral within 48 hours, pushing the active constellation toward 10,000 operational satellites.