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-1069 DRP 2-D Pipeline <p><a href="https://pfspipe.ipmu.jp/jira/secure/ViewProfile.jspa?name=yuki.moritani" class="user-hover" rel="yuki.moritani">yuki.moritani</a> has acquired visits <tt>76389..76398</tt> to study the apparent non-uniformity of the illumination of fibers on the PFI, which appears to vary as a function of instrument angle (InR).</p> <p>Please process these visits.</p> PIPE2D-1069

Process June 2022 PFI non-uniformity data

Task Normal Done Done hassan hassan Fri, 12 Aug 2022 14:38:47 +0000 Tue, 16 Aug 2022 23:53:43 +0000 Tue, 16 Aug 2022 23:51:24 +0000 0 1 <p>The actual valid visits are <tt>76389..76396^76398</tt>, as visit <tt>76397</tt> is not an SPS exposure. </p> <p>Note that for those valid visits, a 100W halogen lamp was used, replacing a 50W halogen lamp. The latter lamp was used for earlier data taken during Sept 2021 for a similar experiment (visits <tt>68424..68427</tt>). See also <a href="https://pfspipe.ipmu.jp/jira/browse/PIPE2D-902" title="Measure the flux of calibration lamps and compare explicitly with prediction from Jim &amp; Erin" class="issue-link" data-issue-key="PIPE2D-902"><del>PIPE2D-902</del></a>.</p> <p>June 2022 data processed by DRP using the following command line:</p> <div class="code panel" style="border-width: 1px;"><div class="codeContent panelContent"> <pre class="code-java"> reduceExposure.py /projects/HSC/PFS/Subaru --calib /projects/HSC/PFS/Subaru/CALIB-20220630 --rerun hassans/dev/pipe2d-1069-20220812a --id visit=76389..76397^76398 arm=b^r -c isr.doFlat=False isr.doWrite=True repair.doCosmicRay=False </pre> </div></div> <p>The Sep 2021 data were re-processed following the same prescription.</p> <p>The integrated flux for each fiber across the <tt>r</tt> band were computed from the <tt>pfsArm</tt> data and scaled according to the following formula: <tt>(flux-refFlux)/np.median(refFlux)</tt> where <tt>flux</tt> is the original integrated flux array (one element per fiber), <tt>refFlux</tt> and the corresponding integrated flux array for a 'reference' visit, <tt>76398</tt> with instrument rotator <tt>InR</tt> of 90deg, from the same June 2022 group of visits.</p> <p>For each visit, the scaled flux for each fiber is plotted in <tt>PFI_mm</tt> coordinates using the cobra design position taken from the Grand Fiber Map, as shown in <span class="nobr"><a href="https://pfspipe.ipmu.jp/jira/secure/attachment/15307/15307_PFI_scaledflux_June2022.png" title="PFI_scaledflux_June2022.png attached to PIPE2D-1069">PFI_scaledflux_June2022.png^{<img class="rendericon" src="https://pfspipe.ipmu.jp/jira/images/icons/link_attachment_7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/>}</a></span>.</p> <p>The data from the Sept 2021 run were plotted similarly, using the reference visit <tt>68426</tt>, again with <tt>InR=90deg</tt>. See <span class="nobr"><a href="https://pfspipe.ipmu.jp/jira/secure/attachment/15308/15308_PFI_scaledflux_Sep2021.png" title="PFI_scaledflux_Sep2021.png attached to PIPE2D-1069">PFI_scaledflux_Sep2021.png^{<img class="rendericon" src="https://pfspipe.ipmu.jp/jira/images/icons/link_attachment_7.gif" height="7" width="7" align="absmiddle" alt="" border="0"/>}</a></span>.</p> <p>The structure that was noticed originally in the Sept 2021 data is unfortunately still apparent in the June 2022 data. Look in particular at visit <tt>76391 (</tt><tt>InR=-90deg)</tt> in the June 2022 data, and compare that with that for visit <tt>68424</tt> (same InR) in the Sep 2021 data.</p> <p>Jupyter notebook used committed to github: <a href="https://github.com/Subaru-PFS/dev_2ddrp/blob/master/notebooks/PIPE2D-1069%20(June2022%20PFI%20non-uniformity).ipynb" class="external-link" rel="nofollow">https://github.com/Subaru-PFS/dev_2ddrp/blob/master/notebooks/PIPE2D-1069%20(June2022%20PFI%20non-uniformity).ipynb</a></p> Relates PIPE2D-902 Development Rank 0|02qpjd:00r209