IHI

Constellation field	SAR
Constellation info	SAR constellation of up to 24 satellites with ICEYE.
Constellation state	Early stage
Launched satellites	0
Planned satellites	24
Form factor	Microsat
Manufacturer	ICEYE
First launch	2026
Launch cadence	Two of the initial four satellites are planned to be assembled and tested in Japan, with preparations already under way between IHI and ICEYE. Subject to successful demonstration results, IHI plans to exercise options for the remaining 20 satellites in phases from fiscal year 2026, targeting completion of the 24-satellite constellation by fiscal year 2029.
Schedule tracking	Generally on-time "2023"
Notes	Epsilon also uses new, cutting-edge technology. We aim to greatly simplify the launch system by using artificial intelligence. Japan's space agency aborts Epsilon S rocket test after fire, 2024-11-26.. IHI Places Initial Order for Four Satellites from ICEYE, 2025-10-22.
Photos
Photo source	[1]

Logo
Entity name	IHI Aerospace
Oneliner	IHI Aerospace Co., Ltd. has been contributing to the space and defense development in Japan as a leading and comprehensive manufacturer of rocket projectiles applying the technologies and expertise of the solid fuel rockets to the products, such as rockets for scientific observation, launching practical satellites, defense-related systems, etc.
Funding	Yes
Location	Japan
Founded	2019
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Last modified: 2026-01-15

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