== IPP Progress Report for the week 2012-05-28 - 2012-06-01 == 
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(Up to [wiki:IPP_Progress_Reports IPP Progress Reports])

=== Eugene Magnier ===

=== Serge Chastel ===

=== Heather Flewelling === 

=== Roy Henderson ===

=== Mark Huber ===

=== Bill Sweeney ===
 * Reported results of psphotStack photometry to DRAVG. Many questions.
   * The data shows that the psphotStack measurements based on the morphology of objects like the Kron measurements and the model fits show better results when using the unconvolved stacks. 
   * There is an offset between SDSS stripe 82 psf magnitudes and psphotStack when a Gaussian psf model is used. A smaller offset results using the PS_MODEL_PS1_V1
   * The scatter in the kron magnitudes appears to be larger than with psphot. This turned out to be due to a bug in the code causing sources with bad moments to be measured.
 * Implemented and tested a feature that limits the kron integration area based on the surface brigthness of the source. With this change the kron radii are much better behaved.
 * Based on all of the above we have updated the psphot recipes and code and created a new operational tag. Time for SAStest.v5

=== Chris Waters ===