(Betsy, Calum, Kate, Gary, Travis, Danny)

Since all other work at End-Y finished yesterday, today we performed the in-chamber SUS/SYS discharge procedure T150101 on ETMy and then closed the chamber. 

Todays sequence of events at EY:

Jim unlocked the ISI.

Filiberto checked for grounding of the TMS QPD cables at the feedthru since Keita/crew had made adjustments to them.  As well, we then rechecked the QPDs with a flashlight for response.  All is well with the QPDs post the strain relieving.

Locked lower masses of ETMy and installed discharge equipment onto QUAD frame.  Discharged ETMy.  Removed equipment and unlocked lower masses.  Numbers to follow regarding the charge measured at the ETMy before executing the procedure and after completed.  The procedure took about an hour.

Swapped in fresh 1" optic and 3" wafer contam. control witness samples - 1 each on the floor of the chamber just under the QUAD and the other set on the QUAD.  All in the same places as before.

Wiped the floor on the way out.

Measured ETMy main and reaction chain P, V, and L TFs.  All looked healthy with purge air on and soft cover over door.

Door put on, purge valved off.

Measured particle counts a few times throughout above.  Numbers to follow.