SL-12 R/B(2) (20370)

COSPAR: 1989-098D | Alt Name: Blok DM-2 No. 23L

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

Launch Date

December 15, 1989

Launch Pad

LC81/23

Launch Vehicle

Proton-K/DM-2

Orbital Elements

NORAD ID

20370

International Designator

1989-098D

Epoch

Fri, 03 Jul 2026 18:06:32 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

13.62°

Right Ascension

337.26°

Eccentricity

Calculating...

Argument of Perigee

194.60°

Period

1471.55 min

Mean Motion

0.98 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-2 No. 23L

Type

Rocket Body

Status

Space Junk

Owner

RVSN

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 20370U 89098D   26184.75454354 -.00000192  00000-0  00000-0 0  9997
2 20370  13.6158 337.2646 0017687 194.5977 180.1891  0.97855936118099

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

17490

Shape

Cyl

Radar Cross Section

2.2275

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

11S861 No. 23L

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.

First Nuclear-Powered Commercial Satellite Flies on Transporter-17 | KeepTrack X Report

First Nuclear-Powered Commercial Satellite Flies on Transporter-17 | KeepTrack X Report

SpaceX's Transporter-17 rideshare carried 81 payloads including history's first nuclear-powered commercial satellite on July 7.

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.

Space Brief 9 Sep 2025

Space Brief 9 Sep 2025

Explore the latest advancements in satellite technology, military satellite applications, and collaborative efforts in hypersonic vehicle tracking. Discover the transformative power of new deals shaping global communication networks.

Space Brief 23 Jan 2025

Space Brief 23 Jan 2025

Today's briefing covers the U.S. Space Force's substantial investments in commercial satellite services, a strategic military shift, Chinese space station upgrades, and NASA's policy changes.

SpaceX to Launch 11,000th Starlink Satellite, Crew-12 Moved Up to Feb 11 | KeepTrack X Report

SpaceX to Launch 11,000th Starlink Satellite, Crew-12 Moved Up to Feb 11 | KeepTrack X Report

SpaceX set to launch 11,000th Starlink satellite on Starlink 17-19 from Vandenberg. NASA moves Crew-12 launch to Feb 11 after ISS medical evacuation. Starship V3 targets mid-March first flight.

X Report 7 Nov 2024

X Report 7 Nov 2024

SpaceX prepares for sixth Starship flight, slated for mid-November, following successful fifth test in October.

Space Brief 7 Nov 2024

Space Brief 7 Nov 2024

Today's Space Brief covers major upcoming launches from SpaceX, US military missile tests, and developments in Virgin Galactic's fleet expansion. Stay informed on key satellite events and launch updates.

A Celebration of Earth Day | Photos of Home

A Celebration of Earth Day | Photos of Home

For 56 years, April 22 has been the day the world stops to look at itself. Before that was possible, someone had to invent the view. This is the story of how we first saw Earth from the outside, from a crashed V-2 camera in the New Mexico desert to the Blue Marble that still hangs on classroom walls.