LIGO Document D1100291-v6

aLIGO IAS LHO Monuments

Document #:
Document type:
D - Drawings
Other Versions:
04 Sep 2012, 20:20
21 Mar 2012, 06:37
The intent is that this document (to include an Excel spreadsheet of coordinates AND a drawing) cover all Initial Alignment System (IAS) monuments for use in aLIGO Initial Alignment at LHO.

D970210-v1 Initial LIGO monuments BTVE, IAM and PSI. Updated/re-surveyed list/drawing, but not a complete set for all of iLIGO
D970210-v2 update to drawing for aLIGO, including LV monuments (to be developed/posted)
LVEA 15Nov2011 LV1 thru LV16. Jason Oberling & Doug Cook, 15 Nov 2011 (prepared earlier in the year). In addition, Dennis Coyne has added monuments starting with LV17 for aLIGO alignment

NOTE: This Excel workbook uses:
1) "XY Chart Labeler", version 7.1.05, cr Rob Bovey. This is a free utility available at
2) A VBA code module to enforce equal X & Y axis scales for the plots. Invoke with Alt-F8

Files in Document:
Other Files:
Notes and Changes:
10/30/2013 J. Oberling: Added X-End Station, ITMx alignment, and tentative SRC alignment monuments.

Added monuments for WBSC2 cartridge alignment on Test Stand #2, per E1200798-v1.

DCC Version 3.2.2, contact Document Database Administrators