HEASARC Staff Scientist Position - Applications are now being accepted for a Staff Scientist with significant experience and interest in the technical aspects of astrophysics research, to work in the High Energy Astrophysics Science Archive Research Center (HEASARC) at NASA Goddard Space Flight Center (GSFC) in Greenbelt, MD. Refer to the AAS Job register for full details.
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
site (http://heasarc.gsfc.nasa.gov/ftools) and use the
ASCL reference for HEASoft
[ascl:1408.004] or the
ASCL reference for the original FTOOLs paper
[ascl:9912.002]:
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
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