(Corey, Greg, Jim)

This balancing encompasses two days.  We balanced the system by monitoring digital voltmeters connected to each Corner's mini-rack.  For the Stage1 CPS's we aimed for voltages under +/- 0.200V, and for the Stage2 (Fine) CPS's we aimed for voltages under +/-0.500V.  A negative voltage connotates a small gap w.r.t. Target Face, and a positive voltage obviously means a bigger gap. 

On Wed, we primarily addressed Stage2, and then stopped since we didn't have enough weights, and needed to consult MIT with our progress.  The notes for Wednesday's work is attached.  For today's work, we focused on finishing out Stage1 Balancing.  After the entire system was balanced we also noted mass placement for the system. 

Finishing Off Today's BSC8 ISI Balancing:

• Initial state:  LOCKED Stage1 & UNLOCKED Stage2
• GAPPING CPS Stage1 & Note values:

Corner1
Stage1
H:  -0.032 V
V:  -0.062

Corner2
Stage1
H:  0.016
V:  -0.115

Corner3
Stage1
H:  -0.021
V:   0.055

• Unlock Stage1, Balance, & Note All CPS's:

Corner1
Stage1
H:  -0.062
V:  -0.014
Stage2
H:  0.066
V:  -0.299
Corner2
Stage1
H:  0.115
V:  -0.015
Stage2
H:  0.103
V:  0.144
Corner3
Stage1
H:  0.190
V:  0.033
Stage2
H:  0.432
V:  -0.380

Mass Distribution

Below are the masses used to attain the current balanced state:

Keel:
(26)D0903136
(2) -1200 Type6

Optical Table:
(6) Trim Mass Damper Assys

CORNER 1
Stage1
Wall:  D0902614, -2615, -2616Type1 , -2616 Type2, -2616Type3, -2616Type5
Side Wall:  -2612
Stage2
Walls (D0701200): (1)Type1, (3)Type2, (1)Type3, (3)Type4

CORNER 2
Stage1
Wall:  D0902614, -2616Type1, -2616Type1, -2616Type2
Side Wall: -2612
Stage2
Walls (D0701200): (2)Type1, (1)Type4, (1)Type5

CORNER 3
Stage1
Wall:  D0902614, -2615, -2616Type2, -2616Type5
Side Wall:  -2612
Stage2
Walls (D0701200): (1)Type2, (1)Type6