A French maritime surveillance satellite is about to make history next week as the first foreign private spacecraft to hitch a ride on Japan’s new flagship rocket.
Unseenlabs, a company based in Rennes, France, confirmed that its BRO-22 satellite will lift off aboard Japan’s H3 Launch Vehicle on June 10, 2026. The launch window is set for 9:53 a.m. to 11:52 a.m. Japan Standard Time from the Yoshinobu Launch Complex at the Tanegashima Space Center, managed by the Japan Aerospace Exploration Agency (JAXA). Space BD, a Japanese space business company, handles the integration of the satellite onto the rocket.
The upcoming mission stems from an ongoing partnership between Unseenlabs and Space BD, following a memorandum of understanding the companies signed in April 2026. Unseenlabs expects to use the H3 rocket for more constellation launches in the future.
“This collaboration with Space BD and JAXA is important for Unseenlabs,” said Clément Galic, CEO and Co-Founder of Unseenlabs. “Japan is a strategic partner for France, and also for Unseenlabs. We are pleased to launch BRO-22 aboard Japan’s H3 rocket and to work with Space BD and JAXA on this mission. This launch is another step in the development of our constellation and supports our goal of providing reliable RF data for maritime surveillance worldwide.”
The satellite is a Gen 1 model that utilizes exclusive monosatellite technology, meaning it operates independently from other units in orbit. Its core mission is to track radio frequency (RF) signals emitted by vessels at sea. This allows the system to locate and identify ships that turn off or lack traditional tracking systems, like the Automatic Identification System (AIS).
The data gathered by the satellite is used to spot illicit ocean activities, including illegal, unreported, and unregulated (IUU) fishing, ocean dumping, and suspicious behavior near critical offshore infrastructure.
The project aligns with the French company’s broader expansion into the Asia-Pacific market, where it already operates a regional office in Singapore. Following the BRO-22 launch, Unseenlabs plans to debut its first Gen 2 satellites in the coming months to expand its signal detection capabilities across sea, land, and space.
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