The whisker display is selected from the XCONTROL display mode menu. Whisker images show line count-rates as a function of wavelength (abscissa) and exposure number - time or solar-x - (ordinate). In a sit-and-stare campaign the ordinate axis will be time, and for a scanning raster the ordinate axis will be solar-x position.

The image then is for one specific slit position. Such images have proven in the past to be particularly useful for sit-and-stare raster, where the time evolution of the line at one position on the sun becomes evident. The image below displays a whisker plot for a line consisting of 100 exposures. There are no velocities in these artificial data, in real data, velocities would show up as horizontal "whiskers" - therefore the naming of this display mode.

The menus available to this mode of display are similar to those described for the xdetector display.

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xwhisker.png 44.8 kB 1 01-Jun-2010 15:25 ViggoHanst
« This page (revision-3) was last changed on 07-Dec-2016 14:14 by PeterYoung