stscijgbot-hstdp

_Comment by [Jennifer Mack](https://jira.stsci.edu/secure/ViewProfile.jspa?name=mack) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=663489#comment-663489):_ P.S.  I did a quick check of the background RMS by hand for hst_5369_qr_wfpc2_wfpc2_f814w_u26kqr_drz_sci.fits (which has an identical SCI array as the standard product...

_Comment by [Steve Goldman](https://jira.stsci.edu/secure/ViewProfile.jspa?name=sgoldman) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=663874#comment-663874):_ Working on the program with only one frame (u26kqr) I was able to try MADStdBackgroundRMS, but there was no change in the calculated background...

_Comment by [Rick White](https://jira.stsci.edu/secure/ViewProfile.jspa?name=rlw) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=663900#comment-663900):_ Hmm, good question about the a priori solution being off. Do you actually see an a priori solution for the u26kqr image? When I...

_Comment by [Steve Goldman](https://jira.stsci.edu/secure/ViewProfile.jspa?name=sgoldman) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=663987#comment-663987):_ I looked at the reference catalog positions and image catalog positions (attached) during matching for one of the chips. It looks like there are...

_Comment by [Jennifer Mack](https://jira.stsci.edu/secure/ViewProfile.jspa?name=mack) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=664019#comment-664019):_ Did you try aligning the DRZ frame yet?   The FLT/FLW frame will be likely be more difficult. It's unlikely an issue with the a...

_Comment by [Steve Goldman](https://jira.stsci.edu/secure/ViewProfile.jspa?name=sgoldman) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=664027#comment-664027):_ Sorry I may be confused. The alignment and catalogs that I showed were created during the drizzlling of the C0M files. Is that what...

_Comment by [Jennifer Mack](https://jira.stsci.edu/secure/ViewProfile.jspa?name=mack) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=664067#comment-664067):_ There is a portion of the code that uses the drizzled frame and try to get alignment.  (I'm not sure if it's in the...

_Comment by [Steve Goldman](https://jira.stsci.edu/secure/ViewProfile.jspa?name=sgoldman) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=664328#comment-664328):_ So I put the failing alignment of the DRZ file aside and looked at the SVM/catalog creation for "u26kqr". It looks like the aligning...

_Comment by [Rick White](https://jira.stsci.edu/secure/ViewProfile.jspa?name=rlw) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=664381#comment-664381):_ I can see how that could be contributing to the problem. I guess if the algorithm that decides whether a fit is acceptable uses...

_Comment by [Steve Goldman](https://jira.stsci.edu/secure/ViewProfile.jspa?name=sgoldman) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=664500#comment-664500):_ Alright, I can add a ticket for improving the weighting logic. I did some more digging and is seems that for the identification of...