日航天机构公布H3运载火箭发射失败初步调查结果

Core Viewpoint - The Japan Aerospace Exploration Agency (JAXA) has released preliminary investigation results regarding the failure of the H3 rocket launch in December 2025, indicating that damage at the satellite and rocket connection point may have caused the failure [1] Group 1: Launch Details - On December 22, 2025, JAXA attempted to launch the "Guide 5" navigation satellite using the H3 rocket, but the mission failed when the second-stage engine stopped burning prematurely about 20 minutes after liftoff [1] - The failure resulted in the satellite not reaching its intended orbit [1] Group 2: Investigation Findings - Initial findings suggest that the satellite fairing separation may have caused damage to the rocket's satellite mounting mechanism, which affected the liquid hydrogen fuel tank's pressure, leading to the premature shutdown of the second-stage engine [1] - Images captured by onboard cameras indicate that the satellite may have detached from the rocket during the separation of the first and second stages, potentially falling into the designated ocean area for the first stage's descent [1] Group 3: Future Actions - JAXA plans to conduct further investigations to determine the specific reasons behind the damage at the satellite and rocket connection point during the fairing separation [1]