https://pfspipe.ipmu.jp/jira This file is an XML representation of an issue en-us 8.3.4 803005 13-09-2019 https://pfspipe.ipmu.jp/jira/browse/PIPE2D-327 DRP 2-D Pipeline <p>Write code to generate 1D spectra from a combination of arc lines. The code should allow the relative intensity of the arc lines to be configurable, thus allowing fitting of element amplitudes. This would be useful for the development of a sky fitting algorithm where the relative amplitudes of OH vibrational systems may vary.</p> PIPE2D-327

Write code to construct 1D spectra from a combination of arc lines

Task Normal Open Unresolved sogo.mineo hassan Mon, 4 Feb 2019 02:01:21 +0000 Wed, 6 Nov 2019 07:24:36 +0000 6.0 0 3 <p>Wrote a code. It takes 10-12 hours to construct an LSF model from 4 arcs.</p> <p>Could you elaborate here?  Exactly what arcs did you combine?  Which lines did you use; you used the strong ones only or everything with a good flag in the line lists?  As we discussed before, I expect that the computing time will increase linearly with the number of lines to fit, but 10-12 hours is clearly non-linear.</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> arcs = [ {<span class="code-quote">"visit"</span>: 17190, <span class="code-quote">"arm"</span>: <span class="code-quote">"r"</span>, <span class="code-quote">"spectrograph"</span>: 1, <span class="code-quote">"type"</span>: [<span class="code-quote">"HgI"</span>, <span class="code-quote">"HgII"</span>, <span class="code-quote">"ArI"</span>]}, {<span class="code-quote">"visit"</span>: 17244, <span class="code-quote">"arm"</span>: <span class="code-quote">"r"</span>, <span class="code-quote">"spectrograph"</span>: 1, <span class="code-quote">"type"</span>: [<span class="code-quote">"NeI"</span>]}, {<span class="code-quote">"visit"</span>: 17424, <span class="code-quote">"arm"</span>: <span class="code-quote">"r"</span>, <span class="code-quote">"spectrograph"</span>: 1, <span class="code-quote">"type"</span>: [<span class="code-quote">"KrI"</span>]}, {<span class="code-quote">"visit"</span>: 17593, <span class="code-quote">"arm"</span>: <span class="code-quote">"r"</span>, <span class="code-quote">"spectrograph"</span>: 1, <span class="code-quote">"type"</span>: [<span class="code-quote">"XeI"</span>]}, ] </pre> </div></div> <p>I use these arcs and everything in the line list with the "good" flag set. As for the long running time, I have no idea. The "10-12 hours" is shortened to 5 hours if I use 5-gaussian instead of 20-gaussian. The number of gaussians is 1/4, but the running time is not. The difference is due to the many peaks used.</p> <p>I clipped those peaks whose heights were less than 2σ before calling scipy's minimizer. With 5-gaussian the running time reached 1 hour.</p> Relates PIPE2D-329 Development Epic Link PIPE2D-300 Rank 0|02qpt6:508yl0chzzy09 Story Points 4.0