Overview
- JAXA confirmed that Hayabusa2 performed a planned fast flyby on July 5 and remained in normal contact after the maneuver that approached roughly 800 meters from Trifune at about 5 kilometers per second.
- High‑resolution images released July 6 show Trifune’s distinctive bilobed or “snowman” shape with a narrow neck and rocky surface features captured in the instant before closest approach.
- The team used added onboard guidance software and autonomous camera data to limit targeting error to roughly 100–150 meters, demonstrating techniques for precise close passes that are directly relevant to planetary‑defense operations.
- The spacecraft’s condition constrains future work: three of four ion engines have failed and the lone remaining engine shows discharge and wear, so reaching the mission’s final target 1998 KY26 in July 2031 depends on careful, limited use of the degraded propulsion.
- This is the seventh spacecraft close‑up of a near‑Earth asteroid and adds data to international planetary‑defense efforts that include impact tests and planned Apophis missions, while also giving JAXA operational lessons for urgent inspection or deflection missions.