Core Viewpoint - The H3 rocket's eighth launch attempt on December 22, 2023, failed, resulting in the satellite not reaching its intended orbit due to an early shutdown of the second-stage engine [1][4]. Group 1: Launch Details - The H3 rocket was launched from the Tanegashima Space Center in Kagoshima Prefecture at approximately 10:51 AM local time [1][4]. - The mission was initially scheduled for December 7 but was delayed due to an anomaly in the inertial measurement unit of the second stage [6]. - A subsequent attempt on December 17 was aborted due to an issue with the cooling water injection system just before ignition [6]. Group 2: Satellite Information - The rocket was carrying the "Linchpin 5" satellite, part of Japan's Quasi-Zenith Satellite System, which is designed to enhance positioning accuracy for devices like smartphones and provide emergency earthquake alerts in areas without signal coverage [3][6]. - The Japanese government aims to establish a seven-satellite system that does not rely on foreign satellites for location information [6].
日本确认：发射失败，卫星未进入预定轨道！火箭发动机提前“结束燃烧”，抛物线坠下云端
Xin Lang Cai Jing·2025-12-22 06:08