Changes between Version 5 and Version 6 of IPP_Progress_Report_20090913

Timestamp:

Sep 20, 2009, 4:23:56 PM (17 years ago)

Author:

eugene

Comment:

--

IPP_Progress_Report_20090913

@@ -34 +34 @@
   * Retrieved and sent dravg archive
  * Stacking:
-  * Everything was getting rejected.  Turned off "additional variance" in pmStack, and get decent rejections now.  This is not well understood yet, but may be connected with a change made a month ago removing the "variance factor" terms, or renormalising the image subtraction chi^2.
+  * Everything was getting rejected.  Turned off "additional variance" in pmStack, and get decent rejections now.  This is not well understood yet, but may be connected with a change made a month ago removing the "variance factor" terms, or renormalising the image subtraction chi^{2}.
   * Can identify bad images using the iq statistics calculated in psphotImageQuality.c: iq_m2, iq_m2_uq-iq_m2_lq, iq_m3 and iq_m4 are useful quantities.
   * Sent Nigel and Peter a dump of !ThreePi data from June/July that should be useful for determining good cuts on these quantities.
@@ -41 +41 @@
   * Using a given analytic PSF instead of that produced by pmPSFEnvelope produces reasonable results for the stack.  Attempting to correlate resultant convolution kernels with iq statistics.
  * Fixed fuzz of FITS images so that expectation values are preserved (trunk@25439), after help from http://fits.gsfc.nasa.gov/registry/tilecompression.html
-
-
 
 === Bill Sweeney ===