Kawaguchi, Jun'ichiroKitajima, AkifumiMori, OsamuShirakawa, Kenichi2026-01-012026-01-0197808770354420065-3438ORCID:/0000-0001-8196-5194/work/162948013https://hdl.handle.net/1885/733800580This paper presents what the Hayabusa spacecraft experienced when it restarted the three axis stabilization. Due to the loss of two wheels aboard and also due to the loss of fuel, the primary axis of inertia of the spacecraft was tilted offset to the geometrical axis. The instability was observed unexpectedly since there was little thought about the instability associated with the single wheel system. The results can be applied for other spacecraft. The flight results are shown as well.7en200860349113177