This page (revision-13) was last changed on 07-Dec-2016 14:14 by Peter Young

This page was created on 06-Jul-2007 13:51 by Harry Warren

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Version Date Modified Size Author Changes ... Change note
13 07-Dec-2016 14:14 6 KB Peter Young to previous
12 07-Apr-2011 16:27 6 KB PeterYoung to previous | to last
11 08-Jul-2010 21:01 5 KB PeterYoung to previous | to last
10 06-Nov-2008 16:34 4 KB PeterYoung to previous | to last
9 09-Jul-2007 12:53 3 KB Louise Harra to previous | to last
8 09-Jul-2007 12:12 3 KB Louise Harra to previous | to last Comment by Louise Harra
7 07-Jul-2007 12:51 3 KB David Pérez-Suárez to previous | to last
6 07-Jul-2007 12:49 3 KB David Pérez-Suárez to previous | to last
5 06-Jul-2007 14:04 2 KB Harry Warren to previous | to last
4 06-Jul-2007 14:03 2 KB Harry Warren to previous | to last
3 06-Jul-2007 14:02 1 KB Harry Warren to previous | to last
2 06-Jul-2007 13:55 1 KB Harry Warren to previous | to last
1 06-Jul-2007 13:51 1 KB Harry Warren to last

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At line 1 changed one line
I just wanted to alert people to the fact that we've written a wrapper to the EIS objects that return the data as a structure. This may provide somewhat faster access to the data. Here's a quick example. If you wanted to read the Fe XII 195 data window from a file and plot it you could do this:
!!! EIS_GETWINDATA - a wrapper to the EIS objects
At line 3 added 5 lines
The EIS data are stored in IDL objects, and all information about the data can be accessed through object methods. However, sometimes it is convenient for the user to dump a particular wavelength window to an IDL structure, together with useful information such as pointing coordinates, start time, exposure time, etc.
The routine that does this is called __eis_getwindata__ and an example of how to call it for the Fe XII 195 data window is given below.
At line 65 added 2 lines
!! PLOT_EIS_RASTER - plotting data from eis_getwindata
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!! EIS_BIN_WINDATA - performing spatial binning
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Sometimes it is useful to perform spatial binning on EIS data in order to improve photon statistics on the emission lines. The routine eis_bin_windata is available in Solarsoft which takes the output from eis_getwindata and performs binning in the X and/or Y directions while preserving the form of the eis_getwindata structure. Errors on the intensities at each of the binned pixels are correctly calculated.
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----
The routine is called as, e.g.,
{{{
IDL> wd=eis_getwindata(l1name,195.12)
IDL> wdnew=eis_bin_windata(wd,xbin=2,ybin=2)
}}}
-- [Peter Young|http://solar.bnsc.rl.ac.uk/~young/]