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HTV-X: History, Background & Flights

HTV-X, also known as the New Space Station Resupply Vehicle (Japanese: 新型宇宙ステーション補給機, Hepburn: Shingata Uchū Sutēshon Hokyūki), is a Japanese cargo spacecraft of JAXA. The successor to the H-II Transfer Vehicle (HTV) for International Space Station (ISS) resupply missions, it was first launched on 26 October 2025.

Language: English [EN]
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HTV-X topic overview

The analysis highlights History, Background and Flights as prominent areas in the source structure around HTV-X.

Related topics
22
Source areas
5
Connected nodes
27
Extracted relationships
84
Concept neighborhoods
12
Bridge connections
27

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Overview · 6 topics
Background · 5 topics
Flights · 5 topics
History · 4 topics
Design · 2 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Applications
ISS resupply
Country of origin
Japan
Derived from
H-II Transfer Vehicle
Design life
6 months (berthed to ISS) · 1.5 years (after departure from ISS)
Diameter
4.4 m (14 ft 5 in)
Height
8 m (26 ft 3 in)

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Background

Design

History

Flights

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How HTV-X connects Entity context

The extracted context around HTV-X shows recurring relationship patterns in the source. For example, HTV-X → Avionics Module, Culture, Education, HTV, HTV's Pressurised Logistics Carrier, In May, Japan's Ministry, PLC, Propulsion Module, Reuse, Science, Service Module, Service ModulePlacement, Sports, Technology, The, ULC, Unpressurised Logistics Carrier Another extracted example is HTV-X → All, April, As, Future, HTV-X4, HTV-X5, HTV-X6, ISS, Japanese, JFY, JFY2028, July, March, May, NET, Some, UTC. Use these groups to spot repeated connection types before inspecting the individual relationships.

HTV-X

Top relations

related to history · 18
HTV-X → Avionics Module, Culture, Education, HTV, HTV's Pressurised Logistics Carrier, In May, Japan's Ministry, PLC, Propulsion Module, Reuse, Science, Service Module, Service ModulePlacement, Sports, Technology, The, ULC, Unpressurised Logistics Carrier
related to Flights · 17
HTV-X → All, April, As, Future, HTV-X4, HTV-X5, HTV-X6, ISS, Japanese, JFY, JFY2028, July, March, May, NET, Some, UTC
related to Design · 13
HTV-X → HTV, HTV's, Identical, It, Mbit/s, PM, Pressurised Module, RCS, Service Module, SM, Unpressurized, Unpressurized Cargo Support System, UPCSS
related to background · 7
HTV-X → American, Common Berthing Mechanism, IHI Aerospace, Mitsubishi Electric, Mitsubishi Heavy Industries, Sierra Nevada Corporation, The HTV-X
Design life · 2
HTV-X → 1.5 years (after departure from ISS), 6 months (berthed to ISS)
Payload capacity · 2
HTV-X → Pressurised: 4,070 kg (8,970 lb), Unpressurised: 1,750 kg (3,860 lb)
Power · 2
HTV-X → Max. battery output: 3 kW, Solar panel generation: 1 kW
Volume · 2
HTV-X → Pressurised: 39.6 m3 (1,400 cu ft), Total: 78 m3 (2,800 cu ft)
Applications · 1
HTV-X → ISS resupply
Country of origin · 1
HTV-X → Japan

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

cargo iss launch htv space module station resupply vehicle design ft h3 pressurised spacecraft launched 26 htv-x1 solar payload unpressurised

HTV-X relationships Subject–Predicate–Object triples

TTTA extracted 84 structured relationships around HTV-X. Examples in this analysis include HTV-X → Applications → ISS resupply and HTV-X → Country of origin → Japan. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
HTV-XApplicationsISS resupply1.00infobox
HTV-XCountry of originJapan1.00infobox
HTV-XDerived fromH-II Transfer Vehicle1.00infobox
HTV-XDesign life6 months (berthed to ISS)1.00infobox
HTV-XDesign life1.5 years (after departure from ISS)1.00infobox
HTV-XDiameter4.4 m (14 ft 5 in)1.00infobox
HTV-XHeight8 m (26 ft 3 in)1.00infobox
HTV-XLaunch mass16,000 kg (35,000 lb)1.00infobox
HTV-XLaunch vehicleH31.00infobox
HTV-XLaunched11.00infobox
HTV-XMaiden launch26 October 2025 (HTV‑X1)1.00infobox
HTV-XManufacturerMitsubishi Heavy Industries1.00infobox
HTV-XOperational11.00infobox
HTV-XOperatorJAXA1.00infobox
HTV-XPayload capacityPressurised: 4,070 kg (8,970 lb)1.00infobox
HTV-XPayload capacityUnpressurised: 1,750 kg (3,860 lb)1.00infobox
HTV-XPlanned21.00infobox
HTV-XPowerSolar panel generation: 1 kW1.00infobox
HTV-XPowerMax. battery output: 3 kW1.00infobox
HTV-XSolar array span18.2 m (60 ft)1.00infobox
HTV-XSpacecraft typeCargo1.00infobox
HTV-XStatusActive1.00infobox
HTV-XVolumePressurised: 39.6 m3 (1,400 cu ft)1.00infobox
HTV-XVolumeTotal: 78 m3 (2,800 cu ft)1.00infobox
HTV-XWebsiteOfficial website1.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around HTV-X bring nearby vocabulary together. In this analysis, examples include Vehicle, Launch and Spacecraft. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • HTV-X
    • Vehicle
    • Launch
    • Spacecraft
    • H3
    • Cargo
    • Space
    • Htv
    • Jaxa
    • Capacity
    • First
    • Propulsion
    • System
  • htv-x
    • Vehicle
    • Launch
    • Spacecraft
    • H3
    • Cargo
    • Space
    • Htv
    • Jaxa
    • Capacity
    • First
    • Propulsion
    • System
  • cargo spacecraft
    • Station
    • Vehicle
    • Space
    • Capacity
    • Spacecraft
    • Unpressurised
    • Launch
    • External
    • Module
    • Htv-x
    • Design
    • H3
  • jaxa
    • Spacecraft
    • Resupply
    • Station
    • Vehicle
    • H-ii
    • International
    • Kw
    • Space
    • Transfer
    • Capacity
    • External
    • Lb
  • h-ii transfer vehicle
    • International
    • Transfer
    • Space
    • Launched
    • Spacecraft
    • Resupply
    • Station
    • Also
    • H-ii
    • Htv-x
    • Iss
    • Jaxa
  • international space station
    • Transfer
    • Station
    • Resupply
    • Vehicle
    • Launched
    • Spacecraft
    • Iss
    • Unpressurised
    • H-ii
    • International
    • External
    • Jaxa
  • h3
    • Payload
    • Launch
    • Htv-x1
    • Launched
    • Unpressurised
    • Htv-x
    • Pressurised
    • Vehicle
    • Space
    • International
    • Jaxa
    • Kw
  • design
    • Pressurised
    • Htv
    • Mass
    • Module
    • Htv-x1
    • Unpressurised
    • H3
    • Vehicle
    • Space
    • Launch
    • H-ii
    • Htv-x

Connections between topic areas Semantic bridges

For HTV-X, one of the stronger structural bridges in this analysis connects HTV-X with Overview. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
HTV-X — Overview · splits 21 ⟂ 7
HTV-X — Background · splits 22 ⟂ 6
HTV-X — Flights · splits 22 ⟂ 6
HTV-X — History · splits 23 ⟂ 5
HTV-X — Design · splits 25 ⟂ 3

Map overview Semantic statistics

HTV-X

Nodes28
Edges27
Triples84
Avg. degree1.93
Density0.071429
Components1

Source & methodology

TTTA analyzes the structure around HTV-X to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Background & Flights, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — HTV-X · EN edition · Analysis: TopicsToTalkAbout

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