Index: trunk/Ohana/src/libautocode/def/average.d
===================================================================
--- trunk/Ohana/src/libautocode/def/average.d	(revision 38601)
+++ trunk/Ohana/src/libautocode/def/average.d	(revision 38986)
@@ -69,5 +69,9 @@
 FIELD catID,          CAT_ID,      unsigned int,    unique ID for table in which object was first realized
 FIELD extID,          EXT_ID,      uint64_t,        external ID for object (eg PSPS objID)
-FIELD extIDgc,        EXT_ID_GC,   uint64_t,        external ID for object in galactic coords
+
+# replace extIDgc (unused) with uRgal, uDgal:
+# FIELD extIDgc,      EXT_ID_GC,   uint64_t,        external ID for object in galactic coords
+FIELD uRgal,          U_RA_GAL,    float,           modeled proper motion based on galactic motion
+FIELD uDgal,          U_DEC_GAL,   float,           modeled proper motion based on galactic motion
 
 # this structure should only be used for internal representations