acoustic injections
quiet reference
1254384320  06 Oct 2019 08:05:00 UTC  
1254384450  06 Oct 2019 08:07:12 UTC  (06 Oct 2019 10:07:12 CEST)

colored 0.0001Vrms filter 1000 1980
1254384647  06 Oct 2019 08:10:29 UTC  (06 Oct 2019 10:10:29 CEST)

colored 0.0005Vrms filter 1000 1980
1254384733  06 Oct 2019 08:11:55 UTC  (06 Oct 2019 10:11:55 CEST)

colored 0.001Vrms filter 1000 1980
1254385064  06 Oct 2019 08:17:26 UTC  (06 Oct 2019 10:17:26 CEST)
stop
1254385261  06 Oct 2019 08:20:43 UTC  (06 Oct 2019 10:20:43 CEST)


subwoofer only, colore 60 100 0.05Vrms
1254385911  06 Oct 2019 08:31:33 UTC  (06 Oct 2019 10:31:33 CEST)
maybe little peak in DARM rises at 45.5Hz (?)

increase volume from front panel of subwoofer
1254386205  06 Oct 2019 08:36:27 UTC  (06 Oct 2019 10:36:27 CEST)
stop
1254386398  06 Oct 2019 08:39:40 UTC  (06 Oct 2019 10:39:40 CEST)
peak seems gone...

on again, same values
1254386504  06 Oct 2019 08:41:26 UTC  (06 Oct 2019 10:41:26 CEST)

colored 0.05Vrms filter 30 50
1254387005  06 Oct 2019 08:49:47 UTC  (06 Oct 2019 10:49:47 CEST)
see line at 45.6Hz 
stop
1254387171  06 Oct 2019 08:52:33 UTC  (06 Oct 2019 10:52:33 CEST)
line seems gone!
repeat, same parameters, 45.6Hz reappears
1254387316  06 Oct 2019 08:54:58 UTC  (06 Oct 2019 10:54:58 CEST)
colored 0.05Vrms 45 10
1254387590  06 Oct 2019 08:59:32 UTC  (06 Oct 2019 10:59:32 CEST)

increased volume from the subwoofer panel (see clear peak at 45.6Hz, also 39.6 and 48.4Hz... to be checked with better resolution, and see if thereis something pre-existing)
1254387789  06 Oct 2019 09:02:51 UTC  (06 Oct 2019 11:02:51 CEST)
stop
1254388147  06 Oct 2019 09:08:49 UTC  (06 Oct 2019 11:08:49 CEST)

0.02Vrms 70 10 
1254388957  06 Oct 2019 09:22:19 UTC  (06 Oct 2019 11:22:19 CEST)
see maybe something around 70-72 but small.. to be better checked with higher resolution
stop
1254389420  06 Oct 2019 09:30:02 UTC  (06 Oct 2019 11:30:02 CEST)




Tappings on costolone
1254389824  06 Oct 2019 09:36:46 UTC  (06 Oct 2019 11:36:46 CEST)
no peaks in DARM


Tappings on link pipe between SNEB and tower
1254390150  06 Oct 2019 09:42:12 UTC  (06 Oct 2019 11:42:12 CEST)
no peaks


Tappings on SNEB chamber
1254390311  06 Oct 2019 09:44:53 UTC  (06 Oct 2019 11:44:53 CEST)
no peaks in DARM


Tappings on big chamber
1254390592  06 Oct 2019 09:49:34 UTC  (06 Oct 2019 11:49:34 CEST)
no peaks in  DARM

Tappings on cryotrap
1254390926  06 Oct 2019 09:55:08 UTC  (06 Oct 2019 11:55:08 CEST)
ITF unlocked right after

Tapping at the 1st floor of NE
1254394550  06 Oct 2019 10:55:32 UTC  (06 Oct 2019 12:55:32 CEST)

Pushing NE from the 2nd floor
1254394801  06 Oct 2019 10:59:43 UTC  (06 Oct 2019 12:59:43 CEST)