(Gregorio Téllez, Gerardo Moreno, Rick Savage)
 
  This week, the Optical Lever long-term stability test began with the transportation of the transmitter (TX) pylon to the Y-mid-station. The receiver-leaner(RX) pylon was in the Mid-y receiving area, but needed to be brought out of its crate and craned to the other side of the beam tube where said tests will be performed. On Tuesday, I received my access card after undergoing laser safety training. Afterwards, I left to mid-y to check on the status of the pylons and moved the laser to the other side of the beam tube together with the other items. During that afternoon, the Apollo crew at mid-y placed both pylons in the desired locations (north side of mid-y). Furthermore, during the morning meeting on Wednesday I briefed Michael Landry about the status of the installation. Later, I went to Mid-y and placed some 'Caution' tape around the area of the pylons and base plate. Some measurements were made to determine possible locations for drilling and grouting. Discussion of the findings and chosen locations will be discussed with the Caltech group and, per M. Landry, inspection of the area will be performed to confirm that the chosen locations are feasible and do not interfere with other on-going labor at Mid-y.