SL-8 R/B (10537)

COSPAR: 1977-122B | Alt Name: Kosmos-3M 16-322 Stage 2

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

Launch Date

December 23, 1977

Launch Site

PLMSC

Launch Pad

LC132/1

Launch Vehicle

Kosmos 11K65M

Orbital Elements

NORAD ID

10537

International Designator

1977-122B

Epoch

Fri, 03 Jul 2026 18:44:12 GMT

Apogee

Calculating...

Perigee

Calculating...

Inclination

82.93°

Right Ascension

185.33°

Eccentricity

Calculating...

Argument of Perigee

157.69°

Period

104.69 min

Mean Motion

13.76 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 16-322 Stage 2

Type

Rocket Body

Status

Space Junk

Owner

RVSN

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

Latest TLEs
1 10537U 77122B   26184.78069524  .00000171  00000-0  16133-3 0  9993
2 10537  82.9333 185.3344 0020386 157.6892  15.7740 13.75545423434948

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

1434

Shape

Cyl

Radar Cross Section

4.1709

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

S3M

Purpose

Unknown

Mission

Unknown

Manufacturer

OAZ

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.

SpaceX Starfall Secret Capsule Targets Space Manufacturing | KeepTrack X Report

SpaceX Starfall Secret Capsule Targets Space Manufacturing | KeepTrack X Report

SpaceX's disk-shaped Starfall reentry vehicle debuts as the constellation hits 10,671 working satellites across low Earth orbit.

X Report 11 Jun 2025

X Report 11 Jun 2025

SpaceX successfully launched 23 Starlink satellites while facing delays in launching the Axiom Space mission due to a propellant leak. Additionally, new US broadband rules favor Starlink's expansion into rural markets.

DAF Space Restructure Announced Within Days, PAE Leaders Named | KeepTrack Space Brief

DAF Space Restructure Announced Within Days, PAE Leaders Named | KeepTrack Space Brief

Department of Air Force announces finalized Program Acquisition Executive structure within days, reshaping oversight of GPS, SBIRS, and Protected Tactical Satcom systems.

Jonathan's Space Report

Jonathan's Space Report

Jonathan's Space Report is a comprehensive resource for space launch and satellite data, compiled by astrophysicist Dr. Jonathan McDowell.

X Report 22 Dec 2025

X Report 22 Dec 2025

SpaceX celebrates a year of industry milestones, including the successful deployment of Starlink satellites and innovative advancements in rocket technology.

SpaceX IPO Surges 20% on First Day of Trading | KeepTrack X Report

SpaceX IPO Surges 20% on First Day of Trading | KeepTrack X Report

SpaceX shares jumped nearly 20% in its historic public debut, valuing the company partly on Starlink's AI infrastructure potential with 10,636 satellites working.

GPS III SV10 Launches on Falcon 9, X Report 20 Apr 2026

GPS III SV10 Launches on Falcon 9, X Report 20 Apr 2026

GPS III SV10 launched April 21 on a SpaceX Falcon 9 with 3x better accuracy and 8x anti-jamming. Starlink stands at 10,263 working satellites.

LeoLabs Launches Delta Military SSA Platform | KeepTrack Space Brief

LeoLabs Launches Delta Military SSA Platform | KeepTrack Space Brief

LeoLabs debuts Delta, a space monitoring tool designed for military operators to detect adversarial orbital activity beyond standard conjunction warnings.