Changes between Version 101 and Version 102 of MD.GR0

Timestamp:

Oct 3, 2011, 2:45:51 AM (15 years ago)

Author:

Mark Huber

Comment:

--

MD.GR0

@@ -81 +81 @@
 == MD10.V3 reference stack ==
 
-Goal to maximize depth while minimizing the PSF FWHM with enough inputs (4 or more) to produce a stack for all skycells covered. 
+Initial goal was to maximize depth while minimizing the PSF FWHM with enough inputs (4 or more) to produce a stack for all skycells covered. 
 
 Compared to the cumulative metrics at http://ipp0022.ifa.hawaii.edu/ps1sc/metrics/range_2010-05-13_current/
@@ -92 +92 @@
 
 
-In tracking down an odd skycell (048, y-band) highlighted an odd rejection case and prompted a modification to the criteria based on the RMS (see r32170). This may help reduce other cases of large number of rejections but likely needs some tuning (currently too restrictive?). Using the PSF FWHM cuts in the DEEP_STACK reduction also helps reject strange input warps as well.
-
-Initially the stack processing was ran without a reduction type and ran sample of best PSF and test deep stack (version 20110722gri, 20110715y, 20110718z) along with a test sample of a best PSF focused set MD10.psfrefstack.20110814) and a test best deep stack (just skycell.055, i-band, not distributed). After discovery of this error, re-ran as DEEP_STACK reduction type (version 20110821) and should be the one used.  (need to change in SSdiffs soon)
-
-
-
-Reduction type description:
+In tracking down an odd skycell (048, y-band) highlighted an odd rejection case and prompted a modification to the criteria based on the RMS (see r32170). This may help reduce large number of rejections in future refstacks but likely needs some tuning (currently still rejecting too many?). Using the PSF FWHM cuts in the DEEP_STACK reduction also helps reject strange input warps as well.
+
+Initially the stack processing was run without a reduction type and thus with just defaults that compresses the images (version 20110722gri, 20110715y, 20110718z) along with a test sample to produce the best PSF focused set (MD10.psfrefstack.20110814) and a test best deep stack (just skycell.055, i-band, not distributed). This is not optimal and a re-run was done with the DEEP_STACK reduction type (version 20110821) and should be the one used. The different reduction types include:
+
 NULL (none/default values used from recipes/ppStack.config unless defined in gpc1/ppStack.config):
  * PSF.INPUT.MAX           F32  NAN
@@ -137 +134 @@
 
 
+A summary table of the reprocessed reference stacks and the former V2 where center skycell for V3=skycell.055, V2=skycell.078.
+
 || '''version label''' || '''filter''' || '''center skycell input warps (rejected)''' || '''center skycell FWHM (major)''' || 
 ||  MD10.refstack.20110821 V3 || y || 63(11) || 0.96" ||
@@ -165 +164 @@
 || || || || ||
 
- *center skycell for V3=skycell.055, V2=skycell.078 
-
+ 
 Using the MD10.refstack.20110722 and related set, histograms and mag-magerr plots for the reference stack, deeprefstack test, psfrefstack, typical nightly stack and V2 refstack are compared. The re-run MD10.refstack.20110821 will go a little deeper than the psfrefstack version.
 [[Image(MD10.20110814_i_testdeep.png,700px)]]