Today Jeff K. pointed out that the results from the final position survey of the NCal at EX were never posted to the alog; this post rectifies that.

We surveyed the NCal in 2 ways: we measured the vertical position of the top, center, and bottom of the NCal rotor w.r.t. WBSC09=0.0; we also measured the X, Y, and Z coordinates of a reference punch mark that Timesh placed on one of the support struts for the NCal housing.  This punch mark was roughly placed in line with the center of the NCal rotor.  Please recall that the H1 ETMx sits at -80.0 mm w.r.t. WBSC09=0.0 (from E1400205).  And now, the results:

• Rotor height w.r.t. WBSC09 = 0.0
  • Top: -52.3 mm
  • Center: -70.9 mm
  • Bottom: -96.2 mm
• X,Y,Z coordinates for reference punch mark
  • X: 3998931.4 +/- 0.7 mm
  • Y: -1243.1 +/- 2.9 mm
  • Z: -71.1 +/- 0.05 mm

Please keep in mind that the above coordinates are only for the reference punch mark, not for the center of the NCal itself.  Timesh will have to provide those coordinates, as that is a calculation he made that I do not have access to.