SL-4 DEB (40621)

COSPAR: 2015-024C | Alt Name: deb Progress M-27M

DECAYED

Image

Additional Sources

Launch Details

Launch Date

April 28, 2015

Launch Site

Tyuratam Missile and Space Complex

Launch Pad

LC31

Launch Vehicle

Soyuz-2-1A

Orbital Elements

NORAD ID

40621

International Designator

2015-024C

Decay Date

4/29/2015

Basic Satellite Info

Name

SL-4 DEB

Alternative Name

deb Progress M-27M

Type

Debris

Status

Space Junk

Owner

RKKE

Country

Russia

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

Diameter

Span

Dry Mass

Launch Mass

Shape

N/A

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Unknown

Purpose

Unknown

Mission

Unknown

Manufacturer

PROGT

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.

Kratos Wins $447M Space Force MEO Missile Tracking Deal | KeepTrack Space Brief

Kratos awarded $447 million Space Force contract for Resilient Missile Warning Tracking ground ops center in Medium Earth Orbit, shifting missile detection away from vulnerable GEO satellites.

X Report 11 Aug 2025

Severe weather conditions disrupt the launch of Amazon’s Project Kuiper satellites, highlighting ongoing challenges in satellite deployment amidst increasing competition in the space industry.

Space Brief 24 Oct 2025

Today's Space Brief covers China's latest satellite launch, Russian threats to UK satellites, European defense strategies, and upcoming satellite launches from SatLeo and Quantum Space.

Long March 10B Debut Highlights 4-Launch Week | KeepTrack Week in Review

This week: China's Long March 10B debuted successfully, SpaceX merged with xAI, and Starlink topped 10,775 satellites in orbit.

X Report 6 Aug 2025

SpaceX has adapted Pad 1 for Ship Static Fire tests while addressing the recent downtime at Massey’s, showcasing its commitment to maintaining launch schedules despite setbacks.

A Tribute to Albert Einstein

Ask anyone on the street who the smartest person ever was, and most will say Albert Einstein. Exactly 71 years ago today, this genius departed from the world. Today, we examine Einstein's innumerable contributions to astronomy and how he shaped space history for years to come.

Space Brief 7 Mar 2025

Key insights from the latest SpaceX Starship breakup, the establishment of a new satellite mobile service, and enhancing America's missile shield capabilities through satellites.

SpaceX Starfall Reentry Vehicle Plans Revealed by FAA | KeepTrack X Report

FAA documents expose SpaceX's Starfall reentry vehicle program, targeting in-space manufacturing support as the Starlink constellation holds 10,397 working satellites.