Changeset 26689

Timestamp:

Jan 26, 2010, 11:21:07 PM (16 years ago)

Author:

Paul Price

Message:

GAUSS PSF model seems to be required for good photometry on convolved stack images. Reducing the size of the kernel and the reference size seems to help for stacks too. Haven't tried diffs with these parameters yet.

Location:

branches/eam_branches/20091201/ippconfig/recipes

Files:

• ppStack.config (modified) (1 diff)
• ppSub.config (modified) (3 diffs)

branches/eam_branches/20091201/ippconfig/recipes/ppStack.config

@@ -55 +55 @@
         y       F32     0.0
 END
-        
+
 PSF.INSTANCES   S32     15              # Number of instances for PSF generation
 PSF.RADIUS      F32     20.0            # Radius for PSF generation
 PSF.ORDER       S32     1               # Order of spatial variation for PSF generation
-PSF.MODEL       STR     PS_MODEL_PS1_V1 # Model for PSF generation
+PSF.MODEL       STR     PS_MODEL_GAUSS  # Model for PSF generation
 
 TEMP.IMAGE      STR     conv.im.fits    # Suffix for temporary convolved images

branches/eam_branches/20091201/ippconfig/recipes/ppSub.config

@@ -2 +2 @@
 
 KERNEL.TYPE     STR     ISIS_RADIAL     # Kernel type to use (POIS|ISIS|SPAM|FRIES|GUNK|RINGS)
-KERNEL.SIZE     S32     35              # Kernel half-size (pixels)
+KERNEL.SIZE     S32     30              # Kernel half-size (pixels)
 SPATIAL.ORDER   S32     1               # Spatial polynomial order
 REGION.SIZE     F32     0               # Iso-kernel region size (pixels)
 SOURCE.RADIUS   F32     3.0             # Source matching radius (pixels)
 STAMP.SPACING   F32     300             # Typical spacing between stamps (pixels)
-STAMP.FOOTPRINT S32     40              # Size of stamps (pixels)
+STAMP.FOOTPRINT S32     35              # Size of stamps (pixels)
 STAMP.THRESHOLD F32     5               # Flux threshold for stamps (stdev above background)
 STRIDE          S32     100             # Size of convolution patches (pixels)
@@ -58 +58 @@
 
 SCALE           BOOL    TRUE            # Scale kernel parameters by the seeing?
-SCALE.REF       F32     11.0            # Reference for kernel parameter scaling
-SCALE.MIN       F32     0.5             # Minimum scale value
+SCALE.REF       F32     9.0             # Reference for kernel parameter scaling
+SCALE.MIN       F32     0.7             # Minimum scale value
 SCALE.MAX       F32     1.2             # Maximum scale value
 
@@ -72 +72 @@
 # Recipe overrides for STACK
 STACK   METADATA
+        KERNEL.TYPE     STR     ISIS    # Kernel type
 END