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Kind Attachment Name Size Version Date Modified Author Change note
pro
eis_getpinfo.pro 1.3 kB 1 25-Sep-2007 17:51 JianSun a simple warp idl program to extract pointing info from EIS fits file

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

This page was created on 25-Sep-2007 17:35 by JianSun

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Here’s a summary:
1. The pointing information in eis fits header is for LW CCD only.
{{{Note that the heliocentric coordinates stored in the fits headers and returned
by the EIS software apply to the long wavelength band, not the short wavelength band.
This is because the He II 256 line was used to co-align with the SOT data.}}}
2. Images on SW CCD are 16-20" (or pixels) higher (ie. in %%(color:#990000;)Y-direction%% towards north pole) than LW CCD.
{{{This may vary with wavelength}}}
3. Images on SW CCD are 2" (or pixels) righter (ie. in %%(color:#990000;)X-direction%% towards solar-west limb) than LW CCD.
{{{The fact is that the two CCD images arise from different halves of the primary mirror.
The focal points of the two mirror halves could thus be different.}}}
4. Slit-tilt effection?
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Version Date Modified Size Author Changes ... Change note
13 07-Dec-2016 14:14 2.732 kB JianSun to previous
12 27-Sep-2007 16:08 3.477 kB JianSun to previous | to last
11 27-Sep-2007 16:06 3.45 kB JianSun to previous | to last
10 27-Sep-2007 16:01 3.401 kB JianSun to previous | to last
9 26-Sep-2007 07:20 2.072 kB David R Williams to previous | to last
8 26-Sep-2007 07:12 2.068 kB David R Williams to previous | to last Comment by David R Williams
7 25-Sep-2007 18:36 1.317 kB JianSun to previous | to last
6 25-Sep-2007 18:01 1.294 kB JianSun to previous | to last
5 25-Sep-2007 18:00 1.291 kB JianSun to previous | to last
4 25-Sep-2007 17:54 1.293 kB JianSun to previous | to last
3 25-Sep-2007 17:53 1.27 kB JianSun to previous | to last
2 25-Sep-2007 17:36 1.22 kB JianSun to previous | to last
1 25-Sep-2007 17:35 1.184 kB JianSun to last
« This page (revision-13) was last changed on 07-Dec-2016 14:14 by JianSun