XMM-Newton Science Analysis System: User Guide

4.12.2.2 Inspection of spectra or timeseries using the command line

Although xmmselect interacts in a convenient way with the external plotting programme grace, the user might want to plot, inspect or export spectra and timeseries which have been created in an already closed xmmselect session or via evselect from the command line. As the produced output files are FITS files, the FTOOLS task fv and fplot offer many possibilities here, but also the SAS task dsplot can be used. Assuming that the spectrum or time series is named product.fits:

• A plot can be generated:

   
  dsplot table=product.fits
  

• Postscript files can be created.

  dsplot table=product.fits plotter='gracebat -printfile product.ps'
  

• Spectrum and timeseries files can also be dumped into an ASCII file using the command dstoplot.

  dstoplot table=product.fits > product.asc