AETHER

Failed station attitude recovery

A tumbling cylindrical station, an internal sliding mass, and a partially filled annular tank. The agent sees only noisy, delayed sensors — never truth, never the hidden slosh coefficients, never which RCS jet will fail.

• Target q = [1, 0, 0, 0] · ω → 0
• Slider |s| ≤ 1.8 m · impact under 0.25 m/s
• +Y thruster fails in flight · detect without a clock