日本H3火箭在发射倒计时结束后未离开发射架

Core Viewpoint - The Japan Aerospace Exploration Agency (JAXA) was scheduled to launch an H3 rocket on December 17, but the launch was halted due to equipment anomalies, with the cause of the issue currently under investigation [1] Group 1 - The H3 rocket was intended to carry a Japanese navigation system satellite to enhance satellite positioning accuracy [1] - The launch was stopped after the countdown reached zero, indicating a significant operational setback for JAXA [1] - The agency is actively confirming the reasons behind the equipment malfunction that led to the launch cancellation [1]