SL-3 R/B (12646)

COSPAR: 1981-075B | Alt Name: Vostok-2M (N80) Stage 3

Image
SL-3 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

August 7, 1981

Launch Site

PLMSC

Launch Pad

LC43/3

Launch Vehicle

Vostok 8A92M

Orbital Elements

NORAD ID

12646

International Designator

1981-075B

Epoch

Sat, 04 Jul 2026 04:17:53 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

81.23°

Right Ascension

257.11°

Eccentricity

Calculating...

Argument of Perigee

272.00°

Period

101.66 min

Mean Motion

14.16 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

SL-3 R/B

Alternative Name

Vostok-2M (N80) Stage 3

Type

Rocket Body

Status

Space Junk

Owner

RVSN

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 12646U 81075B   26185.17908571  .00000119  00000-0  52818-4 0  9999
2 12646  81.2257 257.1100 0065812 272.0028 116.6112 14.16429674319112

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

3.8

Diameter

2.6

Span

3.8

Dry Mass

1440

Launch Mass

1440

Shape

Cyl

Radar Cross Section

5.3225

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

8A92ME

Purpose

Unknown

Mission

Unknown

Manufacturer

PROG

Life Expectancy

Unknown

Bus

Blok-E

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.

All 33 Raptor V3 Engines Ignite in Super Heavy Static Fire | KeepTrack X Report

All 33 Raptor V3 Engines Ignite in Super Heavy Static Fire | KeepTrack X Report

SpaceX ignited all 33 next-gen Raptor V3 engines on the Super Heavy booster at Starbase, Texas, marking a critical milestone toward the next Starship flight.

Space Brief 21 Sep 2025

Space Brief 21 Sep 2025

Today's Space Brief covers a significant signals intelligence launch, a record-breaking satellite deployment in China, a glimpse into the newest stealth drone, a potential delay for NASA's lunar lander, and more exciting updates from satellite world.

Space Brief 2 Apr 2025

Space Brief 2 Apr 2025

DARPA's accidental SpaceX detection highlights Earth as a natural sensor, while SpaceX's Fram2 launches into a polar orbit. Helsinki's defense budget rise hints at increased military satellite activity.

Space Brief 25 Aug 2024

Space Brief 25 Aug 2024

Today's Space Brief covers NASA's decision on Starliner, SpaceX's preparations for the Polaris Dawn mission, and updates on various space activities. Also featured is an in-depth look at the Hubble Space Telescope.

The Day We Banned the Word "Film"

The Day We Banned the Word "Film"

On January 20, 1972, the second KH-9 HEXAGON lifted off from Vandenberg - carrying the most sophisticated reconnaissance system ever built by engineers who weren't allowed to say 'film,' 'camera,' or even talk to each other about what they were doing.

Nuclear Renaissance Surges in Space, Pentagon Invests $1B in L3Harris Missiles | KeepTrack Space Brief

Nuclear Renaissance Surges in Space, Pentagon Invests $1B in L3Harris Missiles | KeepTrack Space Brief

Demand surges for nuclear power in space including lunar surface reactors. Pentagon commits $1B as anchor investor in L3Harris missile unit. Orbion delivers 33 electric thrusters for military sats.

X Report 19 Mar 2025

X Report 19 Mar 2025

SpaceX safely returns Crew-9 from ISS, launches new Starlink satellites, and showcases its satellite kit production capabilities.

Space Brief 20 Sep 2025

Space Brief 20 Sep 2025

Today's highlights include SpaceX's Starlink launch, NASA's revived lunar mission, and a spotlight on space-defense activities.