stscijgbot-hstdp

_Comment by [Rick White](https://jira.stsci.edu/secure/ViewProfile.jspa?name=rlw) on [JIRA](https://jira.stsci.edu/browse/HLA-1146?focusedCommentId=668915#comment-668915):_ [Lisa Sherbert](https://jira.stsci.edu/secure/ViewProfile.jspa?name=sherbert) pointed out on Slack that ticket HSTSDP-2001 is relevant to the issue that that the `QUALITY` keywords are blank for the flt/flc...

_Comment by [Rick White](https://jira.stsci.edu/secure/ViewProfile.jspa?name=rlw) on [JIRA](https://jira.stsci.edu/browse/HLA-1146?focusedCommentId=668993#comment-668993):_ In case the `EXPFLAG` keyword turns out to provide a solution for this problem, I did some more investigation of its values. Here is...

_Comment by [Rick White](https://jira.stsci.edu/secure/ViewProfile.jspa?name=rlw) on [JIRA](https://jira.stsci.edu/browse/HLA-1146?focusedCommentId=669146#comment-669146):_ I spent some time working on this for the current HAP data and wrote up my results as an [innerspace page](https://innerspace.stsci.edu/x/WLdHGg). My recommendation is...

_Comment by [Rick White](https://jira.stsci.edu/secure/ViewProfile.jspa?name=rlw) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=661342#comment-661342):_ The other image in the 2023-09-07 sample, [hst_8230_04_wfpc2_wfpc2_f814w_u5c504](https://hla.stsci.edu/cgi-bin/display?image=/HAP/results_2023-09-07/u5c504/hst_8230_04_wfpc2_wfpc2_f814w_u5c504_drz.fits&loadcats=gaia), shows a similar effect. It has only 4 Gaia stars overlapping the image, but they all...

_Comment by [Steve Goldman](https://jira.stsci.edu/secure/ViewProfile.jspa?name=sgoldman) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=661479#comment-661479):_ Keeping notes here: For U26KQR: Median background: 0.0017260612221434712 Median RMS background: 0.4666666666666667 . . . Matching 2410 saturated pixels with 42 catalog sources Matched...

_Comment by [Jennifer Mack](https://jira.stsci.edu/secure/ViewProfile.jspa?name=mack) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=661516#comment-661516):_ The PC background is often different from the WF chips, possibly due to internal reflections for some targets.   For SVM drizzle products with more...

_Comment by [Steve Goldman](https://jira.stsci.edu/secure/ViewProfile.jspa?name=sgoldman) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=661640#comment-661640):_ This is the SVM image for u5c504 showing some pretty obvious streaks (attached). I will try to align this dataset using just the WF...

_Comment by [Jennifer Mack](https://jira.stsci.edu/secure/ViewProfile.jspa?name=mack) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=661679#comment-661679):_ I think what you are calling streaks are nan values where there are bad pixel flags.  I didn't think there were enough of those...

_Comment by [Jennifer Mack](https://jira.stsci.edu/secure/ViewProfile.jspa?name=mack) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=661688#comment-661688):_ Attached shows the HLA preview of u5c504 with some large circles added by me to highlight the different catalogs... It says 7 gaia sources,...

_Comment by [Steve Goldman](https://jira.stsci.edu/secure/ViewProfile.jspa?name=sgoldman) on [JIRA](https://jira.stsci.edu/browse/HLA-1112?focusedCommentId=662212#comment-662212):_ Aligning and doing the catalog creation on only the WF chips for u5c504 still results in only one source (detected twice) being identified in...