M-4S DEB (05419)

COSPAR: 1971-011C | Alt Name: deb Tansei 1
DECAYED

Image
M-4S DEB Satellite Image
Additional Sources
Launch Details

Launch Date

February 16, 1971

Launch Site

KSCUT

Launch Pad

M

Launch Vehicle

Mu-4S

Orbital Elements

NORAD ID

05419

International Designator

1971-011C

Decay Date

7/26/1980

Basic Satellite Info

Name

M-4S DEB

Alternative Name

deb Tansei 1

Type

Debris

Status

Space Junk

Owner

ISAS

Country

Japan

Constellation

N/A

Related Satellites

Major Events

N/A

Summary
Space debris, also known as space junk, encompasses all non-functional objects orbiting Earth such as defunct satellites, spent rocket stages, and fragments from collisions or disintegrations. Over time, this debris can accumulate and create an increasingly hazardous environment in orbit. Even tiny fragments, traveling at extremely high velocities, can inflict significant damage on operational satellites and spacecraft. If left unmanaged, the density of debris raises the risk of catastrophic collisions and further fragmentation, compounding the problem and threatening the safety and sustainability of space activities.
Physical Characteristics

Length

0

Diameter

0

Span

0

Dry Mass

0

Launch Mass

0

Shape

N/A

Radar Cross Section

0.004

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Unknown

Purpose

Unknown

Mission

Unknown

Manufacturer

Unknown

Life Expectancy

Unknown

Bus

Unknown

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.

China's Rocket Factory Finds a Second Gear

China's Rocket Factory Finds a Second Gear

In 2024, China launched 68 orbital missions. In 2025, the number jumped to 97. In 2026, state media and Western analysts agree the target is 140 or more. Most of that growth is being driven by two state-backed mega-constellations, a half-dozen private launch companies hitting stride, and a deliberate national pivot toward commercial space. Beijing is no longer trying to catch SpaceX. It is trying to build an industrial base that outlasts one.

Space Brief 16 May 2025

Space Brief 16 May 2025

Today's brief covers challenges in Space Force procurement, promising developments in tracking technologies, and significant budget cuts affecting military aerospace projects.

X Report 17 Aug 2025

X Report 17 Aug 2025

SpaceX prepares for its 10th Starship test flight, set for August 24, as the FAA grants approval following earlier setbacks.

Space Brief 10 Dec 2025

Space Brief 10 Dec 2025

Today's brief covers China's intense launch schedule, a new Arctic military constellation, Muon Space's defense innovations, and SpaceX's classified NROL-77 mission.

Space Brief 5 Mar 2025

Space Brief 5 Mar 2025

Today's brief covers developments in US military space initiatives, advancements in missile technology, and notable military contractor activities.

SpaceX Preps First February Starlink Launch, Orbital Data Centers Gain Traction | KeepTrack X Report

SpaceX Preps First February Starlink Launch, Orbital Data Centers Gain Traction | KeepTrack X Report

SpaceX readies Starlink 17-32 launch of 25 satellites from Vandenberg. Orbital data center economics draw attention from Musk and Bezos. 9,614 Starlink sats on orbit.

Space Brief 18 Nov 2024

Space Brief 18 Nov 2024

Today’s Space Brief covers the deployment of a new optical sensor for the Space Force, SpaceX's recent Starlink satellite launch, and significant investment in space cargo vehicles.

Space Force Gets $26B in Defense Bill, Golden Dome Initiative Funded | KeepTrack Space Brief

Space Force Gets $26B in Defense Bill, Golden Dome Initiative Funded | KeepTrack Space Brief

Space Force allocated $26B in 2026 defense appropriations backing Golden Dome initiative. FY26 defense bill adds $8B but sidelines $28B munitions request. First Qatari-Emirati joint defense venture formed.