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The Minor Planet Observer
Palmer Divide Observatory

2007 Shoemaker Grant Recipient

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PhotoRed Reduction Routines - Transforms Errors

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The errors routine allows you to check the transforms by converting the instrumental magnitude of each star in a standard field to a standard magnitudes and then subtracting the catalog value for the star, assuming the same band for both the instrumental and standard magnitude. In a perfect world, the mean error would be 0 and the standard deviation would be the same. However, there is always some random scatter in the data. This routine shows you just how much and if there might be a systematic error, e.g., the redder the star the greater the error in a given filter.


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This page was last updated on 01/19/11 05:14 -0700.
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