Reports until 13:51, Friday 13 February 2015
H1 CAL (CAL, DetChar, ISC)
alan.weinstein@LIGO.ORG - posted 13:51, Friday 13 February 2015 - last comment - 14:16, Friday 13 February 2015(16722)
Spectra and ranges from Feb 12 locks
Here's what I get from around 9:30 PM PST:
https://ldas-jobs.ligo.caltech.edu/~ajw/projects/ER/A6H1/A6H1_1107840516_asd.png
 
and from around 11:40 PM PST:
https://ldas-jobs.ligo.caltech.edu/~ajw/projects/ER/A6H1/A6H1_1107848416_asd.png
 
I dewhitened with 5 poles at 1 Hz and 5 zeros at 100 Hz, from Kiwamu's alog 16701 , and I use an 8s blackman window with 50% overlap. See https://ldas-jobs.ligo.caltech.edu/~ajw/projects/ER/A6H1/A6H1.py
The first plot shows that 1/f from 25-70 Hz; it's less prominent a bit later. The 4 lines at ~600 Hz are the OMC dither? (Also prominent at LLO; can they be moved up out of band?)
And if you play with the times, there's plenty of variability in the excess noise at 30-200 Hz.
The green HOFT_C00 is H1:GDS-FAKE-STRAIN; just there for reference. I hope it will change into GDS-CALIB-STRAIN soon...
Unless I made some error, LHO is already at 27 Mpc sensemon range (never got much beyond 20 Mpc in S6), wow!
Here's what I get from around 9:30 PM PST:
https://ldas-jobs.ligo.caltech.edu/~ajw/projects/ER/A6H1/A6H1_1107840516_asd.png
 
and from around 11:40 PM PST:
https://ldas-jobs.ligo.caltech.edu/~ajw/projects/ER/A6H1/A6H1_1107848416_asd.png
 
I dewhitened with 5 poles at 1 Hz and 5 zeros at 100 Hz, from Kiwamu's alog 16701 , and I use an 8s blackman window with 50% overlap. See https://ldas-jobs.ligo.caltech.edu/~ajw/projects/ER/A6H1/A6H1.py
The first plot shows that 1/f from 25-70 Hz; it's less prominent a bit later. The 4 lines at ~600 Hz are the OMC dither? (Also prominent at LLO; can they be moved up out of band?)
And if you play with the times, there's plenty of variability in the excess noise at 30-200 Hz.
The green HOFT_C00 is H1:GDS-FAKE-STRAIN; just there for reference. I hope it will change into GDS-CALIB-STRAIN soon...
Unless I made some error, LHO is already at 27 Mpc sensemon range (never got much beyond 20 Mpc in S6), wow!Here's what I get from around 9:30 PM PST:
Here's what I get from around 9:30 PM PST:
https://ldas-jobs.ligo.caltech.edu/~ajw/projects/ER/A6H1/A6H1_1107840516_asd.png
 
and from around 11:40 PM PST:
https://ldas-jobs.ligo.caltech.edu/~ajw/projects/ER/A6H1/A6H1_1107848416_asd.png
 
I dewhitened with 5 poles at 1 Hz and 5 zeros at 100 Hz, from Kiwamu's alog 16701 , and I use an 8s blackman window with 50% overlap. See https://ldas-jobs.ligo.caltech.edu/~ajw/projects/ER/A6H1/A6H1.py
The first plot shows that 1/f from 25-70 Hz; it's less prominent a bit later. The 4 lines at ~600 Hz are the OMC dither? (Also prominent at LLO; can they be moved up out of band?)
And if you play with the times, there's plenty of variability in the excess noise at 30-200 Hz.
The green HOFT_C00 is H1:GDS-FAKE-STRAIN; just there for reference. I hope it will change into GDS-CALIB-STRAIN soon...
Unless I made some error, LHO is already at 27 Mpc sensemon range (never got much beyond 20 Mpc in S6), wow!
 
Images attached to this report
Comments related to this report
lisa.barsotti@LIGO.ORG - 14:16, Friday 13 February 2015 (16724)
No, the calibration is wrong. 
kiwamu.izumi@LIGO.ORG - 14:12, Friday 13 February 2015 (16725)

Alan,

We think the calibration is off by an overall factor of a few.  We are makeing another set of measurements to make it more accurate.