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<div class="section" id="tsr-2009-02-choppy-source-plot-in-etc-18-0">
<h1>TSR 2009-02: Choppy source plot in ETC 18.0<a class="headerlink" href="#tsr-2009-02-choppy-source-plot-in-etc-18-0" title="Permalink to this headline">ΒΆ</a></h1>
<p><b>Author:</b> Victoria G. Laidler</p><p><b>Date:</b> 26 October 2009</p><div class="admonition abstract">
<p class="first admonition-title">Abstract</p>
<p class="last">A source spectrum plot in ETC 18.0 was observed to appear strange
and choppy compared to the corresponding file in CDBS. The choppy
appearance is an artifact of the uneven wavelength spacing in the
source spectrum, which is preserved by pysynphot but was not
preserved by SYNPHOT, together with the fact that a spectrum in
counts is integrated over the bin width.</p>
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<li class="toctree-l1"><a class="reference internal" href="commands.html">Appendix: Commands used to generate plots</a></li>
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