H-2A R/B (50320)

COSPAR: 2021-128B | Alt Name: H-2A F45 Stage 2
DECAYED

Image
H-2A R/B Satellite Image
Additional Sources
Launch Details

Launch Date

December 22, 2021

Launch Site

TANSC

Launch Pad

Y

Launch Vehicle

H-IIA 204

Orbital Elements

NORAD ID

50320

International Designator

2021-128B

Decay Date

2/8/2022

Basic Satellite Info

Name

H-2A R/B

Alternative Name

H-2A F45 Stage 2

Type

Rocket Body

Status

Space Junk

Owner

MHI

Country

Japan

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

9.2

Diameter

4

Span

9.2

Dry Mass

4000

Launch Mass

4000

Shape

Cyl

Radar Cross Section

Unknown

Visual Magnitude

Unknown

Color

Unknown

Material Composition

Unknown

Technical Details

Payload

H-2A Stage 2

Purpose

Unknown

Mission

Unknown

Manufacturer

MHITO

Life Expectancy

Unknown

Bus

H-2A Stage 2

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 Aug 2025

X Report 12 Aug 2025

SpaceX ramps up Raptor 3 testing and the launch landscape heats up with Vulcan and Ariane set to lift off before Starlink missions.

Space Force Forecasts 25 Extra Heavy-Lift Missions Through 2029 | KeepTrack Space Brief

Space Force Forecasts 25 Extra Heavy-Lift Missions Through 2029 | KeepTrack Space Brief

Space Force projects 25 additional high-energy missions in 2027–2029 window, straining capacity at Vulcan and Falcon Heavy. Capacity constraints will drive military-NASA prioritization debates.

Falcon 9 Shatters Reuse Record With 33rd Flight on Double Launch Day | KeepTrack X Report

Falcon 9 Shatters Reuse Record With 33rd Flight on Double Launch Day | KeepTrack X Report

SpaceX launches two Falcon 9 rockets in one day carrying Starlink satellites from both coasts. Most-flown booster achieves record 33rd flight. 28 V2 Mini Optimized sats deployed.

Space Brief 16 Apr 2025

Space Brief 16 Apr 2025

Today's highlights include Pulsar Fusion's groundbreaking nuclear rocket plans, partnerships for the Haven-1 space station, and a spotlight on military collaboration in quantum technology.

Crew-11 Completes First-Ever ISS Medical Evacuation, SpaceX Sets Pad Record | KeepTrack X Report

Crew-11 Completes First-Ever ISS Medical Evacuation, SpaceX Sets Pad Record | KeepTrack X Report

Crew-11 astronauts splashdown off California in first-ever ISS medical evacuation. SpaceX sets pad turnaround record at Cape Canaveral with Starlink 6-98 deploying 29 satellites.

The Day Columbia's Crew Shared Their Vision of Peace

The Day Columbia's Crew Shared Their Vision of Peace

Twenty-two years ago, the crew of Space Shuttle Columbia awakened to John Lennon's 'Imagine' and shared a profound message about unity and peace that would become part of their enduring legacy

X Report 25 Jan 2025

X Report 25 Jan 2025

SpaceX advances Starship infrastructure, President Trump considers closing the National Space Council, and 23 new Starlink satellites boost global connectivity.

Space Brief 4 Nov 2024

Space Brief 4 Nov 2024

China's Tiangong space station completes crew rotation, Rocket Lab prepares for confidential launch, and Japan successfully launches military satellite with its H3 rocket.