March 3, 2023 (JST)

Japan Aerospace Exploration Agency

Japan Aerospace Exploration Agency (JAXA) had scheduled to launch the first H3 Launch Vehicle (H3 TF1: Test Flight No.1) with the Advanced Land Observation Satellite-3 “DAICHI-3” (ALOS-3) onboard on February 17, but the launch was cancelled due to an anomaly detected in the first-stage flight control system right before its scheduled launch.
As a result of the investigation, it is estimated that the first-stage flight controller malfunctioned due to transient fluctuations in the communication and power lines that occurred during electrical separation between the rocket and the ground facilities. Necessary countermeasures are expected to be completed within the launch period.
Based on the above investigation and the status of the countermeasures, the new launch date for the first H3 Launch Vehicle has been set as follows;

We will reassess whether the launch on March 6 will be possible or not based on the weather conditions.