The PPS is the beginning of the second that appears in the next message
Take care of rollout on a file basis: check min and max micros value. If rollout, "correct" for it by replacing low values with low + rollout. Only then perform fit. Generate a "micros to datetime" function. Return a datetime UTC vector for interpolated times for both ADC and GPS.
@jerabaul29
Map PPS and GPS messages to real world datetime.