Japan Aerospace Exploration Agency: Government / agency (Japan), launches, rockets and satellites

Industry / Companies / Japan Aerospace Exploration Agency

20Orbital launches

47All launches (incl. suborbital)

22Satellites in orbit

25Satellites built

6Rockets / spacecraft

Japan Aerospace Exploration Agency is a government organisation based in Japan, founded in 2003. Our records show 20 orbital launches, 22 satellites in orbit and 6 rockets or spacecraft.

Totals include the divisions, sites and subsidiaries listed under Structure below.

Official website · Wikipedia · More from Japan

Structure

Divisions, sites and subsidiaries

Institute of Space and Astronautical Sci 0 orbital launches · 5 satellites in orbit

Products

Rockets and spacecraft

Name	Type	Status	First flight	Launches	To low orbit
H-II Transfer Vehicle (HTV)	Cargo Resupply	Retired	2009	9
Epsilon	Rocket	Active	2013	6 (1 failed)
HTV-X	Cargo Resupply	Active	2025	1
SS-520	Rocket	Retired	2017	1 (1 failed)	4 kg
SS-520	Rocket	Retired	2018	1	4 kg
Epsilon S	Rocket	Active	2013	0

Activity

Orbital launches per year

11121316171819212223242526

Last 15 years. Peak: 3 launches in one year.

Satellites in orbit

By platform

ALOS	3
GOSAT	3
RAPIS	2
Astro-H	2
GCOM	2
Index	1
SOLAR B	1
SPRINT-B	1

Recent launches

Date	Mission	Vehicle	Site	Result
19 Oct 2026	MMX	H3-24L	TNSC	Success
10 Aug 2026	QZS 7	H3-22S	TNSC	Success
12 Jun 2026	VEP-5	H3-30S	TNSC	Success
22 Dec 2025	QZS 5	H3-22S	TNSC	Failure
26 Oct 2025	HTV-X1	H3-24W	TNSC	Success
15 Jul 2025	Sporadic E study	S-310	USC	Success
2 Feb 2025	QZS 6	H3-22S	TNSC	Success
14 Nov 2024	DES/RATS-2	S-520	USC	Success
4 Nov 2024	DSN 3	H3-22S	TNSC	Success
1 Jul 2024	ALOS 4	H3-22S	TNSC	Success
17 Feb 2024	VEP-4	H3-22S	TNSC	Success
2 Dec 2023	S-520-RD2	S-520	USC	Success

In the news

Recent headlines

JAXA’s MMX Enroute to Mars To Return Samples of Phobos SpacePolicyOnline.com · 20 Oct 2026
Japanese MMX mission set for launch to study Martian moons NASASpaceflight · 19 Oct 2026
Celebrating BepiColombo, three words at a time ESA · 19 Oct 2026
JAXA’S MMX Mars Mission Readies for Launch with Two NASA Instruments SpacePolicyOnline.com · 16 Oct 2026
NASA to Help Unlock Mysteries of Mars’ Moons in Upcoming Mission NASA · 15 Oct 2026
NASA Briefing to Highlight Contributions to Martian Moons Mission NASA · 8 Oct 2026
NASA Shares SpaceX Crew-14 Assignments for Space Station Mission NASA · 24 Sep 2026
First switch on for ESA-JAXA Ramses asteroid mission ESA · 23 Sep 2026
NASA-JAXA XRISM Mission Sees Pulsar Gathering Companion’s ‘Wind’ NASA · 18 Sep 2026
MTM's selfie footage of BepiColombo's eight-year journey ESA · 9 Sep 2026

Matched by name; a headline may mention this organisation without being about it. All headlines.

Provenance

Where this comes from

This entry merges 3 sources: Launch Library 2 · GCAT (J. McDowell) · Wikidata (Q179103 )
Verification status: cross-checked across sources, not yet reviewed by a person. How we build and check this data.

Launch and satellite data: Jonathan McDowell's GCAT (CC BY 4.0) and CelesTrak. Rockets, spacecraft and agencies: Launch Library 2 by The Space Devs and Wikidata. News headlines link to their publishers via the Spaceflight News API and RSS feeds. Records come from several sources and are matched automatically, so treat the directory as a research aid, not an authority. How the data is built and checked.