Basic results

Segment Segment number, counting from 0
Timestamp Timestamp from the data frame containing the first sample in the segment, not including padding samples. Seconds into the signal in snapshot analysis mode, date and time in real-time mode.
Mode status "New" for modes that were not detected in the previous segment, and "Sustained" for modes that were detected in the previous segment.
Damping evaluation Text field, alerting the user if the damping ratio is good, low, very low or negative.
Alarm "Weak", "Strong" or "Critical" if alarm conditions are met, and the damping is low, very low or negative respectively. Blank if there is no alarm.
Frequency Estimated frequency of the mode in hertz.
Damping ratio Estimated damping ratio of the mode in the current segment.
Median amplitude Median of the registered amplitudes in the amplitude curve.
Start time The number of seconds into the segment when the oscillation is first detected.
End time The number of seconds into the segment when the oscillation is last detected.

Advanced results

Initial amplitude The first non-zero value that is not removed for being part of a short consecutive sequence in the row.
Final amplitude The lase non-zero value that is not removed for being part of a too short consecutive sequence in the row.
Frequency band start The lowest frequency in the combined row in which the oscillation is detected.
Frequency band stop The highest frequency in the combined row in which the oscillation is detected.
Initial amplitude estimate The initial amplitude in the fitted curve. $A$ in $A e^{-\alpha t}$.
Decay rate Decay rate of the fitted curve. $\alpha$ in $A e^{-\alpha t}$.
Non zero fraction (NZF) The fraction of the whole (combined) row where the amplitude value is not zero. Includes zeros before start time and after end time.
Interpolated fraction The fraction of the amplitude curve that was interpolated for being zero in the Hilbert spectrum. Does not include zeros before start time and after end time.
Coefficient of variation (CV) The coefficient of variation between the amplitude curve (with interpolated gaps) and the fitted curve.