# Purpose: 	Part of the source code for Luminary 1A build 099.
#		It is part of the source code for the Lunar Module's (LM)
#		Apollo Guidance Computer (AGC), for Apollo 11.

#	Assemble revision 001 of AGC program LMY99 by NASA 2021112-61
#	16:27 JULY 14, 1969 

# *********************************************************************************
# INCREMENT TTF/8, UPDATE LAND FOR LUNAR ROTATION, DO OTHER USEFUL THINGS
# *********************************************************************************
#
#	TTFINCR COMPUTATIONS ARE AS FOLLOWS --
# Page 803
#		TTF/8 UPDATED FOR TIME SINCE LAST PASS:
#			TTF/8 = TTF/8 + (TPIP - TPIPOLD)/8
#		LANDING SITE VECTOR UPDATED FOR LUNAR ROTATION:
#			____               ____   ____                   __
#			LAND = /LAND/ UNIT(LAND - LAND(TPIP - TPIPOLD) * WM)
#		SLANT RANGE TO LANDING SITE, FOR DISPLAY:
#			                 ____   _
#			RANGEDSP = ABVAL(LAND - R)