Here is the list of problems in SAS9 (unresolved SA8 problems appended to the end)

|| priority || problem                                                         || location || fixer || fixed? || 
||                || nigel found magnitude variation problems due to zeropoint offset|| ipp  || Bill  || yes    ||  
||                || minor  zeropoint issue || ipp / ubercal || Gene/Eddie ||     ||  
||                || stackdetections some have kronflux = 0 and some have kronflux = -999 why? all things with forced photometry have kronflux = 0 (other columns are set to 0 as well - basically kron* and moments*  = 0) recommend they are set to null  || cmf file|| gene ||  ||
||                ||  ndetections != ng + nr + ni + nz + ny in many cases see [[wiki:SA9ndetections]]  || dvo || heather/gene ||

||                || stsci has object count integrity problems - investigate and compare to conrad s    - factor 2 in det in obj_table    see [[wiki:SAS9DataIntegrity]]           ||   dvo?    || heather      ||          ||
||                || stsci likely has other issues that need to be added to this wiki  ||       ||  heather ||       ||
||                ||need description of xflags (object table)                         || wiki  || heather ||yes [wiki:PSPSFlags] ||
||                || xmeanpsfmag == xstackpsfmag discussions:right now, xmean is set to xstack when only stack detection. should be flag - see thread on this ||    ||    ||
||        1       ||need  flag mask for stack only detections and forced photometry in stacks that are included by default                             ||     || bill || ||
||                || need flag masks for 'good' detections                                || || ||
||        3        ||need psvo-type  flag mask generator for psps                                     ||
||                ||      apMag in !StackDetectionFull needs exp time correction || ipptopsps || heather ||
||                ||    flxRn values in stackApFlux  needs exp time correction || ipptopsps || heather ||
||                ||  check aperature values  as per Roberto                   ||         || heather ||
||                || need descriptions of all flags                            || wiki    || heather || yes [wiki:PSPSFlags] ||
||                || go over [[wiki:HeathersPSPSVerificationPage]] and determine the columns that need to be dropped or filled ||  || heather/gene/ken || 
||                || conrad data integrity issues (the overlap object/stack/detections - see [[wiki:SAS9DataIntegrity]] ||     || heather ||  ||
||      3          || edge problem part 1: psps and ipptopsps both need bigger ranges for SAS || ipptopsps/psps ||  heather/thomas ||
||      3         || edge problem part 2: integrity will always fail near edges heather thinks || || ken || we decided we will accept that (3pi)||
||                || -999s in ndetections :  see [[wiki:SA9ndetections]]  12k from failed batch, 60k from ipptopsps not having enough ra/dec range, 2k need investigation|| || heather||  
||                || ken's funny meanpsf vs kronpsf mag problem (sounds similar to previous problem - exposure time again ? || ipptopsps || heather ||
||     3           || John Lacy extended model radii problem - see DRAVG pages                                                                         || ipp           ||  gene ||
||     ||Object has unfilled columns: projectionCellId, stackVer, consistency, updated, varFlag || || ||
|| ||DetectionFull has unused columns: activeFlag, historymodnum || || ||
|| ||StackDetectionFull has unused columns: primaryF, apmagerr, kronraderr, activeflag, historymodnum || || ||
|| ||stackDetectionFull = skycell column not set properly || || ||
|| ||Object has unused w band nw, wMean,wMeanPSFMag, etc || || ||
|| || remap of stack and p2 flags to infoFlags = (dbflags << 46 | flags2 << 32 | flags)  || ipptopsps and wiki || heather || ||