A system for, and method of recovering a solar-powered spacecraft from an anomaly that renders the attitude of the spacecraft unknown includes maintaining a power-safe attitude by switching between two orthogonal axes using solar panel current sensors. An oscillator-based analog to digital converter receives the one or more voltage signals and controls one or more oscillators according to the voltages. The lesion quality of the ablated tissue region is determined based on the measured reactance. Third actor is a remote computer system arranged for detecting the event occurrence by storing digital conditioning attributes and information that secures data integrity without knowledge of the digital document. A control circuit sets a first dead time between the first and fourth signals and a second time between the third and second signals individually.