SL-12 R/B(2) (15181)

COSPAR: 1984-078F | Alt Name: Blok DM No. 48L

Image
SL-12 R/B(2) Satellite Image
Additional Sources
Launch Details

Launch Date

August 1, 1984

Launch Pad

LC200/40

Launch Vehicle

Proton-K/DM

Orbital Elements

NORAD ID

15181

International Designator

1984-078F

Epoch

Fri, 03 Jul 2026 19:36:57 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

8.94°

Right Ascension

313.67°

Eccentricity

Calculating...

Argument of Perigee

214.17°

Period

1435.84 min

Mean Motion

1.00 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot
3D Visualization
Basic Satellite Info

Name

SL-12 R/B(2)

Alternative Name

Blok DM No. 48L

Type

Rocket Body

Status

Space Junk

Owner

RVSN

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 15181U 84078F   26184.81732986 -.00000355  00000-0  00000-0 0  9992
2 15181   8.9409 313.6672 0021609 214.1675 163.7377  1.00289929123189

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

6.3

Diameter

3.7

Span

6.3

Dry Mass

2440

Launch Mass

17200

Shape

Cyl

Radar Cross Section

1.5849

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

11S86 No. 48L

Purpose

Unknown

Mission

Unknown

Manufacturer

NPOE

Life Expectancy

Unknown

Bus

Blok DM

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 27 Jan 2025

Space Brief 27 Jan 2025

Highlights include US military astronaut rescue drills, China's commercial involvement in lunar missions, ESA's budget proposals, global opposition to space advertising, and NASA lunar landers.

Artemis 2 Crew Returns After 50-Year Lunar Milestone | KeepTrack Space Brief

Artemis 2 Crew Returns After 50-Year Lunar Milestone | KeepTrack Space Brief

Artemis 2 splashdown marks first crewed lunar flyby since Apollo 17 in 1972. Four astronauts completed historic mission, validating systems for Artemis 3 landing attempt.

Space Brief 2 Jan 2025

Space Brief 2 Jan 2025

Today's recap covers SpaceX's role in record launch numbers, the FCC's spectrum allocation for launches, and the historical portrayal of the Ingenuity helicopter.

Blue Origin Announces 5,400-Satellite Constellation to Rival Starlink | KeepTrack X Report

Blue Origin Announces 5,400-Satellite Constellation to Rival Starlink | KeepTrack X Report

Blue Origin reveals plans for 5,400+ satellite constellation targeting enterprise and government with 6 Tbps capacity. SpaceX launches first West Coast Starlink mission of 2026 from Vandenberg.

X Report 9 Jun 2025

X Report 9 Jun 2025

Tensions between SpaceX and the U.S. government escalate as President Trump's threats could have significant implications on the company's operations and future plans. Meanwhile, India takes a significant step in its space endeavors with a historic astronaut launch.

Sally Ride and the Twenty Years It Took America to Catch Up

Sally Ride and the Twenty Years It Took America to Catch Up

At 7:33 on the morning of 18 June 1983, a 32-year-old astrophysicist named Sally Ride rode Challenger off Pad 39A and became the first American woman in space. She got there two decades after the Soviets, and only after months of being asked whether spaceflight would damage her reproductive organs and whether she planned to cry.

Starship Flight 13 to Debut First Starlink V3 Satellites | KeepTrack X Report

Starship Flight 13 to Debut First Starlink V3 Satellites | KeepTrack X Report

SpaceX readies Starship Flight 13 for July 16 launch to deploy first Starlink V3 satellites as Falcon 9 logs its 600th booster reuse.

X Report 13 Nov 2025

X Report 13 Nov 2025

Today's report covers SpaceX's progress on Starship pad realignment and Rocket Lab's delay of its Neutron rocket debut, highlighting key advancements and competitive dynamics in the space industry.