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FTOOLS: The TIME Sub-package

The TIME sub-package of FTOOLS contains tasks specific to timing.

The following TIME tasks were released 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 fhelp {taskname}.

Time-Related Tasks:

barycorr
Generalized multi-mission barycenter correction tool (HEAGen package)
burst
Remove bursts of events from time ordered event list
cktime
Checks that a time column is time ordered
deadtime
Update the exposure of PHA file by deadtime based on GTIs
fltime
Filter an event list within given time intervals (GTIs)
maketime
Calculate time intervals (GTIs) from housekeeping (HK) data
mgtime
Merge 2 or more time interval (GTI) files
sec2time
Convert time offset to absolute time
time2sec
Convert absolute time to a time offset
FTOOLS HELP DESK

If FTOOLS has been useful in your research, please reference this site (https://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.