diff --git a/Comanche055/CONIC_SUBROUTINES.agc b/Comanche055/CONIC_SUBROUTINES.agc
index da15d71..6eca239 100644
--- a/Comanche055/CONIC_SUBROUTINES.agc
+++ b/Comanche055/CONIC_SUBROUTINES.agc
@@ -111,7 +111,7 @@
 #							MAJOR AXIS), FOR SPEED OF CONVERGENCE, BUT IF EITHER CONDITION FAILS, XKEPNEW IS RESET
 #							BY KEPLER TO A POOR BUT VALID GUESS.
 #	TC		+28			DP PREV. VALUE OF TIME IN CENTISECS. MUST BE LESS THAN ONE ORBITAL PERIOD.
-#	XPREV		+17 FOR EARTH		PREVIOUS VALUE OF X IN SQRT(METERS).  MUST BE LESS THAN AN X CORRESPONDING TO ONE
+#	XPREV		+17 FOR EARTH		DP PREV. VALUE OF X IN SQRT(METERS).  MUST BE LESS THAN AN X CORRESPONDING TO ONE
 #			+16 FOR MOON			ORBITAL PERIOD, VIZ, 2PI SQRT(SEMI-MAJOR AXIS)
 #
 # SUBROUTINES CALLED --