Index: branches/eam_branches/20091201/ppStack/src/ppStackMatch.c
===================================================================
--- branches/eam_branches/20091201/ppStack/src/ppStackMatch.c	(revision 26740)
+++ branches/eam_branches/20091201/ppStack/src/ppStackMatch.c	(revision 26769)
@@ -301,4 +301,5 @@
             float sysError = psMetadataLookupF32(NULL, ppsub, "SYS.ERR"); // Relative systematic error in images
             float skyErr = psMetadataLookupF32(NULL, ppsub, "SKY.ERR"); // Additional error in sky
+            float covarFrac = psMetadataLookupF32(NULL, ppsub, "COVAR.FRAC"); // Fraction for covariance calculation
 
             const char *typeStr = psMetadataLookupStr(NULL, ppsub, "KERNEL.TYPE"); // Kernel type
@@ -412,5 +413,5 @@
             if (kernel) {
                 if (!pmSubtractionMatchPrecalc(NULL, conv, fake, readout, readout->analysis,
-                                               stride, kernelError, maskVal, maskBad, maskPoor,
+                                               stride, kernelError, covarFrac, maskVal, maskBad, maskPoor,
                                                poorFrac, badFrac)) {
                     psError(PS_ERR_UNKNOWN, false, "Unable to convolve images.");
@@ -446,5 +447,5 @@
                                         orders, inner, ringsOrder, binning, penalty,
                                         optimum, optWidths, optOrder, optThresh, iter, rej, normFrac,
-                                        sysError, skyErr, kernelError, maskVal, maskBad, maskPoor,
+                                        sysError, skyErr, kernelError, covarFrac, maskVal, maskBad, maskPoor,
                                         poorFrac, badFrac, PM_SUBTRACTION_MODE_2)) {
                     psError(PS_ERR_UNKNOWN, false, "Unable to match images.");