SL-13 R/B (03545)

COSPAR: 1968-103B | Alt Name: Proton-K 236-01 Stage 3
DECAYED

Image
SL-13 R/B Satellite Image
Additional Sources
Launch Details

Launch Date

November 16, 1968

Launch Pad

LC81/24

Launch Vehicle

Proton-K

Orbital Elements

NORAD ID

03545

International Designator

1968-103B

Decay Date

1/25/1969

Basic Satellite Info

Name

SL-13 R/B

Alternative Name

Proton-K 236-01 Stage 3

Type

Rocket Body

Status

Space Junk

Owner

RVSN

Country

USSR

Constellation

N/A

Related Satellites

Major Events

N/A

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

6.5

Diameter

4.2

Span

6.5

Dry Mass

4185

Launch Mass

4185

Shape

Cyl

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

8S812

Purpose

Unknown

Mission

Unknown

Manufacturer

ZIKH

Life Expectancy

Unknown

Bus

8S812

Configuration

Unknown

Motor

Unknown

Equipment

Unknown

Power System

Unknown

ADCS

Unknown

Transmitter Frequency

Unknown

Satellite Articles

View All Posts »

Learn more about satellites and other related topics.

Space Brief 12 Dec 2025

Space Brief 12 Dec 2025

Today's space brief highlights the U.S. Space Force's new satellite naming scheme, the Air Force Secretary's warnings on China's space advances, BAE Systems' DARPA award, strategies for future space defense, the importance of GEO satellite refueling, and Blue Origin's plans for Space Force certification.

Crew-11 Medical Evacuation Set for January 14, Starlink Mission Succeeds | KeepTrack X Report

Crew-11 Medical Evacuation Set for January 14, Starlink Mission Succeeds | KeepTrack X Report

NASA confirms first-ever ISS medical evacuation for January 14 via Crew Dragon. SpaceX launches 29 Starlink satellites in third mission of 2026. Artemis 2 moon mission timeline unaffected.

Starship Flight 12 Targets Mid-May Launch, X Report 2 May 2026

Starship Flight 12 Targets Mid-May Launch, X Report 2 May 2026

Starship Flight 12 status for May 2026: SpaceX targets mid-May with a revised trajectory, while Starlink 10-38 lofts 29 satellites from Cape Canaveral.

X Report 12 Dec 2025

X Report 12 Dec 2025

SpaceX makes headlines with record-breaking launch operations, while plans for an IPO signal major changes in the company's trajectory and could inspire industry-wide movements.

Space Brief 18 May 2025

Space Brief 18 May 2025

Today's briefing highlights recent launches and failures, including an Indian radar satellite setback, successful Rocket Lab missions, and China's debut of upgraded rocket technology.

Space Brief 15 Sep 2025

Space Brief 15 Sep 2025

Discover the latest in satellite tracking with key topics covering the launch of Tranche 1 satellites for the Space Development Agency, a record-setting Transporter-15 mission by Exolaunch, and new defense-focused satellite connectivity solutions by Satlink and Rivada.

Space Brief 12 Aug 2025

Space Brief 12 Aug 2025

Today's brief covers a groundbreaking national security mission for ULA's Vulcan, NASA's collaboration with LeoLabs for enhanced collision avoidance, and SEOPS' new satellite tracking services, among other key developments.

First Graviton Detector Concept Proposed, Space Force Shelves R-GPS Program | KeepTrack Space Brief

First Graviton Detector Concept Proposed, Space Force Shelves R-GPS Program | KeepTrack Space Brief

Keck Foundation team proposes first-ever graviton detector concept. Space Force shelves Resilient GPS program. China advances Long March 12B reusable rocket with static fire test at Jiuquan.