The intent is that this document include an Excel spreadsheet of coordinates AND a drawing, which covers all Initial Alignment System (IAS) monuments for use in aLIGO Initial Alignment at LLO.
Sources: D980499-C ASC Equipment Layout, Lousiana Site E1100374-v4 Survey Data for LLO
NOTE: This Excel workbook uses:
1) "XY Chart Labeler", version 7.1.05, cr Rob Bovey. This is a free utility available at http://www.appspro.com/Utilities/ChartLabeler.htm
2) A VBA code module to enforce equal X & Y axis scales for the plots. Invoke with Alt-F8 http://peltiertech.com/Excel/Charts/SquareGrid.html