greg.grabeel@LIGO.ORG - posted 19:59, Tuesday 22 October 2013 (8225)
BSC 9 Actuator Attachment
Both horizontal and vertical HEPI actuators are attached on BSC 9.
Values after IAS positing, pre actuator attachment:
| Initial | 1 | 2 | 3 | 4 |
| X | .532 | -- | -- | .623 |
| Y | .203 | .329 | .636 | .542 |
| Z | .419 | .430 | .406 | .474 |
After actuator attachment:
| Install | 1 | 2 | 3 | 4 |
| X | .527 | -- | -- | .615 |
| Y | .196 | .329 | .637 | .546 |
| Z | .416 | .424 | .412 | .483 |
Change
| Delta | 1 | 2 | 3 | 4 |
| X | -.005 (N) | -- | -- | -.008 (N) |
| Y | -.007 (W) | 0 | +.001 (W) | +.004 (W) |
| Z | -.003 (U) | -.006 (U) | +.006 (D) | +.009 (D) |
Corner 4's big vertical change was possibly from a tripod with some bend in it.