Features:

• An extensive set of period analysis methods to detect periodicities in time-series : Lomb-Scargle, Bloomfield, Discrete Fourier Transform DFT (Deeming), Date Compensated Discrete Fourier Transform DCDFT (Ferraz-Mello), Jurkewich, PDM (Phase Dispersion Minimization), Dworetsky, Renson.
• Multiple windows to display observation sets, period diagrams, phase diagrams, etc. Each observation set is drawn in a distinctive color, that is consistently used throughout all related windows.
• Powerful data analysis functions for averaging, detrending, prewhitening, heliocentric correction, curve fitting, etc.
• Determination of period error values (uncertainties) based on a method by Schwarzenberg-Czerny.
• Sophisticated calculation of False Alarm Probabilities to determine the period significances, using a Fisher Randomization method (Monte Carlo permutations).
• Extremum finding based on the Kwee-van Woerden algorithm.
• Handles datasets of >300.000 observations (and probably even much more).
• Temporary deactivate observations and study the impact on your period analysis results
• Swiftly import observations from Microsoft Excel™, Microsoft Word™, AIP4WIN™ and other products. Full support of the Windows Clipboard.
• Powerful data and image export capabilities (to file or to clipboard)
• "One-Button-Save" to store all analysis windows on disk and continue your work in identical conditions at a later stage
• Toolbars, cursors and indicators let you select dominant periods, indicate intervals for refinement of your period analysis, etc
• Easy navigation bar to step through and zoom in on observation sets
• Fully customizable windows : axes, grids, window annotation, trendlines, colors, etc.