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/INSTRM-1775 Instrument control development <p>Data has been taken in the last september run to check the mapping from cobra to sm1 fibers.<br/> I already analyzed it at the summit and it looked fine as far as I remember.<br/> I just need to confirm this result and declare this no longer a problem.</p> <p>Data has been taken again (2022-11-17, iic_sequence_id=18555), with sm1 and sm3, I'll post the results here.</p> INSTRM-1775

confirm that mapping from cobra to sm1-3 fibers is correct

Task Normal Done Done arnaud.lefur arnaud.lefur Tue, 1 Nov 2022 14:51:10 +0000 Fri, 10 Feb 2023 16:28:00 +0000 Fri, 10 Feb 2023 16:28:00 +0000 0 1 <p>To give a bit of context with this dataset :<br/> We move all cobras behind the dot in the first place and then we move the cobra out of the dot, group by group and take an exposure each time.<br/> So what I did is calculating the flux gradient between visit<span class="error">&#91;i+1&#93;</span> and visit<span class="error">&#91;i&#93;</span> and find the group that was moved matching the maximum gradient, that's the "mostLikely" column, in a perfect world, actualGroup always match mostLikely.<br/> the sig1 and sig2 columns gives you a sort of confidence value, with</p> <p>sig1 = gradient<span class="error">&#91;actualGroup&#93;</span>/gradient<span class="error">&#91;actualGroup-1&#93;</span><br/> sig2 = gradient<span class="error">&#91;actualGroup&#93;</span>/gradient<span class="error">&#91;actualGroup+1&#93;</span></p> <p>if the mapping is correct, their value is above &gt;1, the higher the ratio, the more confident you are.</p> <p>Here, i'm showing only the fibers with sigma&lt;10.<br/> there are few fibers with sigma slighty above 1 and only one mismatch.<br/> The only mismatch, is basically in the noise, with less that 1% variation.</p> <p>I've also added the final result from the roaching prior to the fiberIdentification sequence where cobra were not successfully hidden.<br/> As one would expect, they match perfectly, the low sigma in the fiberIdentification dataset.</p> <p>So I think, we can conclude that there are no fiberMapping issue in sm1 or sm3.</p> Development Rank 0|zzsvd3: