Reports until 23:18, Thursday 28 May 2015
H1 INJ (INJ)
eric.thrane@LIGO.ORG - posted 23:18, Thursday 28 May 2015 - last comment - 17:52, Friday 29 May 2015(18682)
CW Injections Left Running at LHO with HWINJ gain = 10x 
Chris B, Jeff, Eric

Starting at GPS = 1116915517, we turned on the HWINJ with gain=10 to run in the background indefinitely.  The idea is to make the CW signal loud enough that CW can recover some of these signals with just a few days of data, but weak enough so that they don't disturb the strain spectrum significantly.  If these jobs are found to cause a problem with anything, simply disable the injections with the off switch in the cal model.  NOTE: the overall injection gain is now set to 10, so any tinj injections should be scaled DOWN by 10x.

Here are the CW signals that are currently active (frequency and amplitude shown below not including gain=10 factor):

-bash-4.1$ grep Freq *cfg
Pulsar0_StrainAmp.cfg:Freq              = 265.5771052           ## GW frequency at tRef
Pulsar1_StrainAmp.cfg:Freq            = 849.0832962     ## GW frequency at tRef
Pulsar2_StrainAmp.cfg:Freq            = 575.163573      ## GW frequency at tRef
Pulsar3_StrainAmp.cfg:Freq            =  108.8571594    ## GW frequency at tRef
Pulsar4_StrainAmp.cfg:Freq            = 1403.163331     ## GW frequency at tRef
Pulsar5_StrainAmp.cfg:Freq            = 52.80832436     ## GW frequency at tRef
Pulsar6_StrainAmp.cfg:Freq            = 148.7190257     ## GW frequency at tRef
Pulsar7_StrainAmp.cfg:Freq            = 1220.979581     ## GW frequency at tRef
Pulsar8_StrainAmp.cfg:Freq            = 194.3083185     ## GW frequency at tRef
Pulsar9_StrainAmp.cfg:Freq            = 763.8473165     ## GW frequency at tRef
Pulsar10_StrainAmp.cfg:Freq            = 26.3589129             ## GW frequency at tRef
Pulsar11_StrainAmp.cfg:Freq            = 31.4248598             ## GW frequency at tRef
Pulsar12_StrainAmp.cfg:Freq            = 39.7276097             ## GW frequency at tRef

-bash-4.1$ grep aPlus *cfg
Pulsar0_StrainAmp.cfg:aPlus           = 2.0125e-25            ## plus-polarization signal amplitude
Pulsar1_StrainAmp.cfg:aPlus           = 6.4405e-25            ## plus-polarization signal amplitude
Pulsar2_StrainAmp.cfg:aPlus           = 3.74175e-24            ## plus-polarization signal amplitude
Pulsar3_StrainAmp.cfg:aPlus           = 8.1915e-24           ## plus-polarization signal amplitude
Pulsar4_StrainAmp.cfg:aPlus           = 2.45645e-23            ## plus-polarization signal amplitude
Pulsar5_StrainAmp.cfg:aPlus           = 2.94475e-24            ## plus-polarization signal amplitude
Pulsar6_StrainAmp.cfg:aPlus           = 3.54275e-25            ## plus-polarization signal amplitude
Pulsar7_StrainAmp.cfg:aPlus           = 1.728625e-24            ## plus-polarization signal amplitude
Pulsar8_StrainAmp.cfg:aPlus           = 7.9815e-24            ## plus-polarization signal amplitude
Pulsar9_StrainAmp.cfg:aPlus           = 5.6235e-25            ## plus-polarization signal amplitude
Pulsar10_StrainAmp.cfg:aPlus           = 2.343323e-024          ## plus-polarization signal amplitude
Pulsar11_StrainAmp.cfg:aPlus           = 9.958896e-024          ## plus-polarization signal amplitude
Pulsar12_StrainAmp.cfg:aPlus           = 1.331275e-025          ## plus-polarization signal amplitude
Comments related to this report
keith.riles@LIGO.ORG - 12:40, Friday 29 May 2015 (18696)
Link 

One thing to watch out for is that for the sake of continuity with initial LIGO HW injections
(cf. Emerson, consistency, hobgoblins),  we use reference times going back to
the start of S3, and some of the stars are spinning down pretty hard. The
parameters for this set of injections, including the ER7 start and stop frequencies
in the source rest frames can be found here.
(Those frequencies can be further modulated by Doppler effects from the Earth's
rotation and orbital motion, but for the duration of the ER7 run, those effects
are no greater than 1/100,000.) 

In particular, the start-of-ER7 source-frame frequencies for the 13 pulsars are
the following, where especially large spin-downs are noted:

0 - 265.575587774 Hz
1 - 848.973602759 Hz
2 - 575.163522907 Hz
3 - 108.857159395 Hz
4 - 1393.875953 Hz (vs 1403.163331 Hz in S3)
5 - 52.8083243585 Hz
6 - 146.258236176 Hz (vs 148.7190257 Hz in S3)
7 - 1220.57005882 Hz (vs 1220.979581 Hz in S3)
8 - 191.145490954 Hz (vs 194.3083185 Hz in S3)
9 - 763.847316495 Hz
10 - 26.3430397679 Hz
11 - 31.4247651214 Hz
12 - 38.5604676312 Hz (vs 39.7276097 in S3)

I checked the 15 minutes or so of data from last night, preceding the Alaskan earthquake,
where all pulsars were turned on. Not all of them were immediately visible, but attached
are spectrograms for some that were obviously there (the NDS2 server is giving me trouble
at the moment; I'll look for more signals later).
Images attached to this comment
keith.riles@LIGO.ORG - 17:52, Friday 29 May 2015 (18704)
Link 

NDS2 is cooperating again. Here are spectrograms for additional visible CW injections in last night's pre-quake lock.
Images attached to this comment