Index: /trunk/ippconfig/recipes/psastro.config
===================================================================
--- /trunk/ippconfig/recipes/psastro.config	(revision 41553)
+++ /trunk/ippconfig/recipes/psastro.config	(revision 41554)
@@ -141,4 +141,7 @@
 PSASTRO.MOSAIC.MAX.ERROR.N4   F32      1.5 # max allow error for valid solution (UNITS?)
 PSASTRO.MOSAIC.MAX.ERROR.N5   F32      1.5 # max allow error for valid solution (UNITS?)
+
+# need at least this fraction of chips to pass for exposure to be considered acceptable
+PSASTRO.MOSAIC.MIN.GOOD.CHIP.FRACTION  F32 0.10 
 
 PSASTRO.MOSAIC.MIN.NSTAR      S32      6   # min fitted stars in solution