SL-12 PLAT (21857)

COSPAR: 1992-005E | Alt Name: Perekhodnik
DECAYED

Image
SL-12 PLAT Satellite Image
Additional Sources
Launch Details

Launch Date

January 29, 1992

Launch Pad

LC81/23

Launch Vehicle

Proton-K/DM-2

Orbital Elements

NORAD ID

21857

International Designator

1992-005E

Decay Date

1/30/1992

Basic Satellite Info

Name

SL-12 PLAT

Alternative Name

Perekhodnik

Type

Debris

Status

Space Junk

Owner

RVSNR

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

4

Diameter

3.7

Span

4

Dry Mass

800

Launch Mass

800

Shape

Cyl

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

Sredniy perekhodnik

Purpose

Unknown

Mission

Unknown

Manufacturer

ZIKH

Life Expectancy

Unknown

Bus

Adapter

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 12 Jan 2025

X Report 12 Jan 2025

SpaceX concludes a wet dress rehearsal for Starship Flight 7, aiming for the largest rocket launch on January 15 after weather delays.

Crew-12 Set for Launch, Starlink Wins New Airline Customer | KeepTrack X Report

Crew-12 Set for Launch, Starlink Wins New Airline Customer | KeepTrack X Report

SpaceX Crew-12 mission set to launch astronauts to ISS on Feb 13. Starlink gains another airline partner for in-flight internet. Musk tops Forbes' 250 Greatest Innovators list.

Australian Space Centre Cape York

Australian Space Centre Cape York

When your landlord won't sign the lease, you move. How Equatorial Launch Australia abandoned Arnhem Land and pivoted to Queensland - and what it means for Australia's equatorial launch ambitions.

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.

Space Brief 8 Feb 2025

Space Brief 8 Feb 2025

Stay updated on key orbital events including Rocket Lab's upcoming launch, significant legislative moves in space traffic management, and changes in defense policies impacting space operations.

Starship Flight 12 Summary: V3 Reaches Space, X Report 24 May 2026

Starship Flight 12 Summary: V3 Reaches Space, X Report 24 May 2026

Starship Flight 12 summary: V3 reached space May 22 and survived reentry despite one Raptor vacuum engine shutdown, with most test objectives complete.

Space Brief 10 Nov 2025

Space Brief 10 Nov 2025

Today's brief covers China's record-breaking launch year, SpaceX's continued Starlink deployments, Blue Origin's launch challenges, and innovations in satellite maneuverability.

X Report 18 Nov 2025

X Report 18 Nov 2025

SpaceX successfully launched the Sentinel-6B satellite to monitor global sea levels while resuming daytime rocket launches. Furthermore, delays in the Starship timeline impact NASA's Artemis 3 mission schedule.