FTOOLS: The XRONOS Sub-package


The XRONOS sub-package of FTOOLS is a general purpose timing analysis package.

The following XRONOS tasks were included in the latest release of the HEASARC's FTOOLS package. Each task is hyperlinked to the help file distributed with the task. The same information can be obtained while running FTOOLS by typing the command fhelp {taskname}.

If you require further, or more detailed information on the XRONOS tasks, contact

angelini@lheavx.gsfc.nasa.gov


XRONOS Tasks

ascii2flc
creates a xronos input FITS file from an ASCII file
autocor
calculates auto correlation for a time series
crosscor
calculates cross correlation of two time series
earth2sun
change times to solar system barycenter
efold
creates epoch folded lightcurve, hardness and color-color plots
efsearch
finds best chi-squared period by folding over range of periods
flc2ascii
Dump xronos input or output in ASCII file readable by QDP
lcmath
Subtracts or adds two binned lightcurves
lcstats
calculates statistical variables a time series
lcurve
creates lightcurves, hardness and color-color plots
listdata
list data file on the screen
powspec
creates power spectrum density
rbf2fits
Converts the "EXOSAT rate buffer" format in FITS
timeskew
calculates time skewness function for a time series
xronwin
creates a window file suitable for xronos tasks

FTOOLS HELP DESK

If FTOOLS has been useful in your research, please reference this website (http://heasarc.gsfc.nasa.gov/ftools/) and the following:

Blackburn, J. K. 1995, in ASP Conf. Ser., Vol. 77, Astronomical Data Analysis Software and Systems IV, ed. R. A. Shaw, H. E. Payne, and J. J. E. Hayes (San Francisco: ASP), 367.

Web page maintained by: Bryan K. Irby