SL-6 R/B (23753)

COSPAR: 1995-072C | Alt Name: Blok-2BL No. 620

Image

Additional Sources

Launch Details

Launch Date

December 28, 1995

Launch Site

Tyuratam Missile and Space Complex

Launch Pad

LC31

Launch Vehicle

Molniya 8K78M

Orbital Elements

NORAD ID

23753

International Designator

1995-072C

Epoch

Sat, 04 Jul 2026 04:57:11 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

98.70°

Right Ascension

255.77°

Eccentricity

Calculating...

Argument of Perigee

53.03°

Period

100.91 min

Mean Motion

14.27 rev/day

Latitude

Calculating...

Longitude

Calculating...

Altitude

Calculating...

Velocity

Calculating...

Polar Plot

3D Visualization

Basic Satellite Info

Name

SL-6 R/B

Alternative Name

Blok-2BL No. 620

Type

Rocket Body

Status

Space Junk

Owner

RVSNR

Country

Russia

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs

1 23753U 95072C   26185.20637798  .00000050  00000-0  38866-4 0  9997

2 23753  98.7049 255.7672 0004476  53.0305 307.1285 14.27034605588346

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

3.3

Diameter

2.3

Span

3.3

Dry Mass

900

Launch Mass

900

Shape

Cyl

Radar Cross Section

4.349

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Blok-2BL No. 620

Purpose

Unknown

Mission

Unknown

Manufacturer

RKKE

Life Expectancy

Unknown

Bus

Blok-L

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.

Latitude

Longitude

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 13 May 2025

China expands its classified satellite series, Space Force advances cloud-based ground station marketplaces, and the Pentagon grows its satellite network partner list. Highlighting new roles for sensor technology in tracking space debris.

Space Brief 5 Sep 2024

Today we cover the final launch of Vega's original version, a significant milestone for SpaceX with the U.S. military, preparations for NASA's Starliner return, and more.

Space Brief 22 Nov 2025

Today's brief covers Blue Origin's national security mission, a new missile interceptor project by Space Force, developments with Starship boosters, and more.

Rocket Lab to Acquire Iridium for $8B, X Report 30 Jun 2026

Rocket Lab will acquire Iridium for $8B to challenge SpaceX, whose Starlink constellation holds 10,706 working satellites of 12,390 launched.

X Report 28 Mar 2025

SpaceX sees another successful Starlink launch and faces strategic contract discussions as NASA pivots to reliable Dragon missions.

Space Brief 18 Dec 2025

Today's updates cover Rocket Lab's launch for the U.S. Space Force, Digantara's major funding round, and discussions on national security in space.

Space Brief 31 Jan 2025

Today's brief covers advancements in satellite technology initiatives by the U.S. Space Force, geopolitical implications in maritime domains, and Sweden's significant military aid package. Additionally, we spotlight a historical satellite with modern implications.

X Report 14 Apr 2025

SpaceX sets a new reuse record with Falcon 9's 27th flight, continuing its Starlink deployment while facing challenges with Starship development.