COSMOS 771 DEB (08356)

COSPAR: 1975-090D | Alt Name: Blenda
DECAYED

Image
COSMOS 771 DEB Satellite Image
Additional Sources
Launch Details

Launch Date

September 25, 1975

Launch Site

PLMSC

Launch Pad

LC43/3

Launch Vehicle

Soyuz-U

Orbital Elements

NORAD ID

08356

International Designator

1975-090D

Decay Date

10/8/1975

Basic Satellite Info

Name

COSMOS 771 DEB

Alternative Name

Blenda

Type

Debris

Status

Space Junk

Owner

GUKOSR

Country

USSR

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

1

Diameter

0.4

Span

1

Dry Mass

20

Launch Mass

20

Shape

Box

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Sunshade

Purpose

Unknown

Mission

Unknown

Manufacturer

TSSKB

Life Expectancy

Unknown

Bus

Zenit BZA

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.

X Report 21 Oct 2025

X Report 21 Oct 2025

NASA considers opening the Artemis 3 lander to new bids as delays surface, while SpaceX gears up for multiple Falcon 9 launches this week and secures a redevelopment nod for SLC-6.

X Report 22 Nov 2025

X Report 22 Nov 2025

Major challenges emerged with SpaceX's next-generation Starship booster testing, while Starlink deployments continued with successful launches.

X Report 9 Feb 2025

X Report 9 Feb 2025

SpaceX prepares for another Starlink launch while facing potential C-band spectrum challenges.

Second Starlink Satellite Generates Debris; Falcon 9 Booster Flies 34th Mission | KeepTrack Space Brief

Second Starlink Satellite Generates Debris; Falcon 9 Booster Flies 34th Mission | KeepTrack Space Brief

Second Starlink satellite malfunctioned on orbit and generated debris within three months of prior event. Falcon 9 booster completed record 34th mission from Cape Canaveral.

DROID.002 - Turion Space's Eyes on the Orbital Junkyard

DROID.002 - Turion Space's Eyes on the Orbital Junkyard

A 90-kilogram spacecraft with iodine thrusters and two Australian-built cameras is quietly building the case that tracking space debris is a business worth billions - and that a four-year-old startup from Irvine can own it.

Space Brief 21 Dec 2025

Space Brief 21 Dec 2025

Today's briefing highlights the SDA's significant satellite award, Blue Origin's groundbreaking flight, and NASA's call for an Artemis review.

The Day That Changed Spaceflight Forever

The Day That Changed Spaceflight Forever

Thirty-nine years ago, the loss of Space Shuttle Challenger and its seven crew members forever transformed our approach to spaceflight safety and risk management

Space Brief 18 Apr 2025

Space Brief 18 Apr 2025

Today's highlights include a Minotaur IV launch of U.S. spy satellites, Rocket Lab's new defense contracts, and the unveiling of Space Force's warfighting framework. Plus, the Satellite Spotlight dives into METEOR 3-1.