asc

To write input file(s) in ASCII (application)

Application asc converts one or more input files to an ASCII file. It requires one input series. It is run in the Question/Answer user interface by typing:

[n]Xronos> asc

[n]Xronos> asc [series1]

[n]Xronos> asc[/qualifier1/qual2/... etc]  [series1]

More on asc

The ASCII output file produced by application asc has a default extension .txt and cannot be used as input to any XRONOS application. If the specified file already exists the output is appended at the end of the file. Note that any lg file option specified through global parameters number 2 and 3 is ignored by asc.

ASCII Files

Besides the file header the ASCII files produced by asc contain 7 columns for each bin; these are (data gaps are not output):

• Bin Counter. This counter recycles after 262144 bins.
• Centre Time of each bin in units of days.
• Centre Time of each bin in hours, minutes, seconds and milliseconds.
• Binning Time in seconds.
• Value of count rate of each bin (counts/s or other units in input file(s)).
• Error on count rate of each bin (counts/s or other units in input file(s)).
• Fractional exposure (0->1) in each bin; besides dead time effects, it includes also instrument-dependent constants (i.e. the collimator efficiency in the case of the EXOSAT ME and GS experiments, or the normalisation for the EXOSAT LE) such that, when dealing with photon counting experiments, the relevant Poisson statistics can be reconstructed.