Today we performed another set of Acoustic Injections, here following is the time-table.
As a general remark, we suggest having a look inside time periods of each injection because the interferometer had some glitches (probably not correlated to injections).
It seems WEB was more sensitive to high acoustic levels respect to NEB (to be investigated a posteriori)
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Morning: System moved to NEB

Two monitor speaker
Two sub-woofer
Level of Monitor speaker: 3/4 range
Level of Sub-woofer amplifier: FULL range
Noise is band-passed 10Hz --> 2kHz
Time is Local time


Quiet time
Aug30,17-09:49:25 -> GPS: 1188114581
Aug30,17-10:01:48 -> GPS: 1188115324

Noise level 0.0001
Aug30,17-10:48:06 -> GPS: 1188118102
Aug30,17-10:58:09 -> GPS: 1188118705

Noise level 0.0003
Aug30,17-10:59:01 -> GPS: 1188118757
Aug30,17-11:09:01 -> GPS: 1188119357

Noise level 0.001
Aug30,17-11:09:51 -> GPS: 1188119407
Aug30,17-11:15:57 -> GPS: 1188119773

Noise level 0.003
Aug30,17-11:16:46 -> GPS: 1188119822
Aug30,17-11:21:39 -> GPS: 1188120115

Noise level 0.006
Aug30,17-11:22:41 -> GPS: 1188120177
General noise increase (10 to 100 times) in ENV_NEB_MIC
No visible effect (by eye) in DF
Aug30,17-11:32:30 -> GPS: 1188120766

NEB AI ended at Aug30,17-11:33:25 -> GPS: 1188120821


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Afternoon: System moved to WEB
Same conditions as before


Quiet time
Aug30,17-12:22:00 -> GPS:
Aug30,17-12:31:31 -> GPS: 1188124307

Noise level 0.0001
Aug30,17-12:36:56 -> GPS: 1188124632
Aug30,17-13:07:39 -> GPS: 1188126475

Noise level 0.0003
Aug30,17-13:09:25 -> GPS: 1188126581
Aug30,17-13:21:58 -> GPS: 1188127334

Noise level 0.001
Aug30,17-13:23:03 -> GPS: 1188127399
Aug30,17-13:33:13 -> GPS: 1188128009

Noise level 0.003
Aug30,17-13:34:37 -> GPS: 1188128093
Aug30,17-13:44:51 -> GPS: 1188128707

Noise level 0.006
Aug30,17-14:01:27 -> GPS: 1188129703
Visible drop of the horizon, B1p moving a lot in the camera, B7_DC and B8_DC very noisy (mainly in the Very Low frequency, say below 10Hz) – probably is an alignment sensitivity to AI ?
Aug30,17-14:04:08 -> GPS: 1188129864

Noise level back to 0.003
Aug30,17-14:08:11 -> GPS: 1188130107
Aug30,17-14:11:47 -> GPS: 1188130323

Quiet time
Aug30,17-14:13:06 -> GPS: 1188130402
Aug30,17-14:16:41 -> GPS: 1188130617


WEB AI ended at Aug30,17-14:16:41 -> GPS: 1188130617