Difference: StewartBoogertPhotometry20172020 (3 vs. 4)

Revision 420 Oct 2017 - RebekahChafer1

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META TOPICPARENT name="StewartBoogertPhotometry2017"
Added error bars to the Histogram
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  SigmaVsExposurefit_-15.png
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When the range was default over all data, histograms were plotted like this (see below), and the range and number of bins had to be input for each individual image. Autorange.png

When we automated the range choice, we received this comb effect

CombEffect.PNG

which caused our fit to skew downwards due to the zeros in some of the bins. We found that this was due to the histogram data being integers and the bin width being <1. Therefore, there wasn't an integer value in every bin. This was accounted for by making an automatic number of bins.

Fitted_Histogram.png

 -- Public.LunaBorella - 19 Oct 2017

META FILEATTACHMENT attachment="meanVsExposurefit2.png" attr="" comment="" date="1508424106" name="meanVsExposurefit2.png" path="meanVsExposurefit2.png" size="33597" user="zavc160" version="1"
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META FILEATTACHMENT attachment="SigmaVsExposurefit_-15.png" attr="" comment="" date="1508431993" name="SigmaVsExposurefit_-15.png" path="SigmaVsExposurefit_-15.png" size="28070" user="zavc160" version="1"
META FILEATTACHMENT attachment="001Gaussianerror.png" attr="" comment="" date="1508496876" name="001Gaussianerror.png" path="001Gaussianerror.png" size="31943" user="zavc160" version="2"
META FILEATTACHMENT attachment="001GaussianerrorClose.PNG" attr="" comment="" date="1508496979" name="001GaussianerrorClose.PNG" path="001GaussianerrorClose.PNG" size="24612" user="zavc160" version="1"
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META FILEATTACHMENT attachment="Autorange.png" attr="" comment="Histogram of Dark frame with default range" date="1508497853" name="Autorange.png" path="Autorange.png" size="34758" user="zavc984" version="1"
META FILEATTACHMENT attachment="CombEffect.PNG" attr="" comment="Histogram with range automatically chosen, which caused this comb effect." date="1508497885" name="CombEffect.PNG" path="CombEffect.PNG" size="29188" user="zavc984" version="1"
META FILEATTACHMENT attachment="Fitted_Histogram.png" attr="" comment="Fitted histogram with automatic bin sizes and automatic range" date="1508498463" name="Fitted_Histogram.png" path="Fitted Histogram.png" size="33981" user="zavc984" version="1"
 
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