http://code.google.com/p/virtualagc/source/browse/trunk/Luminary099/LUNAR_LANDING_GUIDANCE_EQUATIONS.s?r=258#1243

says "USING NETON'S METHOD"

That looked wrong, but code of this era is notable for specialized shortcuts, so I looked for the source images - based on the comments, image 822: http://www.ibiblio.org/apollo/ScansForConversion/Luminary099/0822.jpg

says "USING NEWTON'S METHOD" (line R1064.)

It is nice others are verifying our data entry. I hope we have more people doing this.