Changes between Initial Version and Version 1 of StaticMasks20101215

Timestamp:

Dec 27, 2010, 12:02:56 PM (16 years ago)

Author:

heather

Comment:

--

StaticMasks20101215

@@ +1 @@
+Steps for masking
+
+== Generation of the automasks ==
+
+First, process 100 i band 3pis using DEFAULT_DARKTEST as the reduction.  Then run the following ppMerge:  
+
+ppMerge dark.XY02.mdc dark.XY02 -recipe PPMERGE PPMERGE_FLAT -Db VARIANCES F -Di ITER 3 -Df FRACLOW 0.0 -Df FRACHIGH 0.0 -D COMBINE MEDIAN -type flat'  
+
+dark.XY02.mdc looks like this: 
+
+rawImfile MULTI
+
+rawImfile  METADATA  
+    IMAGE       STR    neb://ipp005.0/gpc1/darktest.20101213/o5367g0082o.184503/o5367g0082o.184503.ch.168800.XY02.fits
+END
+
+(but with all 100 images)
+
+Then, when ppMerge finishes, run 'makemasks.pl' from ~heather/staticmask. This has various cuts based on the median stddev, sigma stddev and %images used, and uses a kernel to reject bad pixels that do not also have bad neighbors.   
+
+== Combining the automask with cte, dark, flat masks ==
+
+go.maskmerge merges together the cte,dark, flat, and automask for each chip.
+
+== Masking ==
+
+same as before, use 'fixmask XY??' to mask a chip, 'fixmask XY?? xy??' to start masking at a certain cell.
+
+== Merging/culling cells that were masked twice ==
+
+When masking, it is possible to exit out and restart a cell. This leads to duplicate cell entries in the static mask. 'fix.single.test XY??' will take the latest cell in a mask as the correct one, as well as find masks that are inconsistent.  
+
+== Special Chips == 
+
+While masking, we discovered that the old CTE mask was not valid for certain chips. Chris generated a new CTE mask, and I removed the old CTE mask and added the new CTE mask to the manual masks.
+
+XY11 -- Because of CTE issues, had not been masked yet.
+
+XY14 -- required the new dark as well. This is the only chip with the new dark (the old dark was masking the first and 3rd column)
+
+== Camera Changes ==
+
+Changes (since the previous mask)
+
+2010-02-28    OTA14 improves
+2010-07-23    OTA11 improves (possibly before, this was the date it was noticed)
+2010-09-12    "camera voltage change"
+2010-09-27    bathtub rings visible in phase 2 devices
+
+For this mask (2010-12-15) I chose a start date of 07-23-2010
+
+== ingesting the chips ==
+
+see /data/ipp004.0/gpc1/detrend/gpcmask.20101215/register.mask.20101215.sh for the script
+