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Watch Japanese H3 rocket launch 10,800-pound navigation satellite to orbit today
space.com Aug 10, 2026

Watch Japanese H3 rocket launch 10,800-pound navigation satellite to orbit today

Curated by · TechCapsules ·

AI-summarised brief · reviewed before publication

Japan’s H3 rocket launched for the ninth time on August 10, carrying the Michibiki 7 navigation satellite from Tanegashima Space Center at 3:23 p.m. EDT. The two‑stage H3, Japan’s successor to the H‑2A, has eight prior flights, including two failures, but successfully placed six satellites into orbit in June. Michibiki 7 joins the Quasi‑Zenith Satellite System (QZSS) and carries a U.S. Situational Awareness Camera Hosted Instrument (SACHI) developed by MIT Lincoln Laboratory. The launch marks a continued partnership between Japan and the United States in space surveillance.

💡 Why It Matters

  • · The mission expands Japan’s regional navigation network while providing the U.S.
  • · with a new tool for monitoring GEO‑belt activity, strengthening joint space situational awareness.
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