qplot runs either xcsao or emsao to check previously computed redshifts which have been stored in the spectrum's VELOCITY and other keywords by either or both programs. The spectrum is displayed interactively by whichever program is specified by the qtask parameter, and the user may modify the results, flag their acceptability, or simply exit without modifying the file.


spectra file or list of files
Use this as the first argument to either xcsao or emsao as specified by qtask.
qtask xcsao
Use this task to display the spectra.
velplot combination Plot the labelled lines at this redshift, which may be combination, emission, or correlation. If the given velocity has not been set in the image header, a redshift of zero is used.

Last updated 2 August 2000