Rtltimeestimate

RtlTimeEstimate (UORB message)

source file

```c uint64 timestamp # time since system start (microseconds)

bool valid # Flag indicating whether the time estiamtes are valid float32 time_estimate # [s] Estimated time for RTL float32 safe_time_estimate # [s] Same as time_estimate, but with safety factor and safety margin included (factor*t + margin)

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