Changeset 17818 for branches/eam_branch_20080511/ppSim/notes.txt

Timestamp:

May 27, 2008, 7:12:46 PM (18 years ago)

Author:

eugene

Message:

working on the photometry of fake sources

File:

• branches/eam_branch_20080511/ppSim/notes.txt (modified) (1 diff)

branches/eam_branch_20080511/ppSim/notes.txt

@@ +1 @@
+
+
+2008.05.17
+
+  pmFPAfiles used in ppSim:
+
+  PPSIM.INPUT : an input image loaded by ppSim; the simulated features
+                may be added to this image.  In fact, the features are
+                generated in the output image, and the two images are
+                added (as images) together.
+
+  PPSIM.OUTPUT  : the output image.  this file is used for the main
+                  ppSimLoop function
+
+  PPSIM.CHIP    : chip-mosaiced version of the output image.  only
+                  generated if photometry is requested.  Is this
+                  actually used as an output image?
+
+  PPSIM.REAL.SOURCES : real sources loaded by PPSIM.  these sources
+                       are subtracted from the image before testing
+                       for the detectability of the fake sources and
+                       before measuring the flux of fake or forced
+                       soures.  They should be the sources measured in
+                       a previous psphot run, though any input list
+                       could be used.  Results are very ill-defined if
+                       the sources do not correspond to actual image
+                       sources!
+
+  PSPHOT.PSF.LOAD : input PSF model used to measure the input sources
+
+  PPSIM.SOURCES : output fake sources (injected fake sources with real values) 
+  PPSIM.FAKE.SOURCES : output fake photometry (measured photometry for all fake sources)
+  PPSIM.FORCE.SOURCES : output force photometry
+  
+  ** used within psphot functions:
+  PSPHOT.BACKMDL : model background generated by psphotModelBackground
+  PSPHOT.BACKMDL.STDEV : model background error generated by psphotModelBackground
+  PSPHOT.BACKGND : full-scale model background generated by psphotSubtractBackground
+  PSPHOT.BACKSUB : background-subtracted image
 
 2008.05.15