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US-Japan space surveillance sensor deployment
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2026-08-18 11:06 UTC → 2026-08-20 17:14 UTC ·
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The United States and Japan have completed the deployment of space-surveillance sensors via concluded the Quasi-Zenith Satellite System-Hosted Payload (QZSS-HP) program. Following an initial sensor launch program following the successful deployment of the final satellite in February 2025, the second sensor was successfully launched on constellation. In August 10 2026, Japan launched the QZSS-7 satellite via a Japanese H3 an H-3 rocket aboard from the QZS-7 satellite. Tanegashima Space Center. This mission deployed a second U.S. Space Force orbital sensor, developed by MIT Lincoln Laboratory and integrated by Mitsubishi Electric Corporation. The deployment of QZSS-7 marks the conclusion of the QZSS-HP program, which represents the first cooperative effort between the two nations focused on national security and orbital infrastructure sharing. This bilateral security cooperation, established under agreements in 2019 and 2020, utilizes Japanese host satellites and launch systems to field U.S. military payloads. The sensors, developed by MIT Lincoln Laboratory, sensors are positioned in geosynchronous orbit over the Indo-Pacific region to provide persistent space domain awareness. Data from these sensors is fed into the U.S. Space Surveillance Network in near real-time to detect, track, and characterize orbital objects and potential threats. objects. Military officials have noted that integrating these capabilities is a strategic step toward addressing threats from peer adversaries in space.
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- 2026-08-20 17:14 UTC US-Japan space surveillance sensor deployment
- 2026-08-18 11:06 UTC US-Japan space surveillance sensor deployment
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