The Apollo crew got lots of work done today. Doors were restored to HAM3-2-1 this morning. After lunch, the north door was removed from HAM4 for septum blank install and then returned by 4pm. Viewports were installed on BSC1. So, we are effectively at the end of our checklist. We'll take one more look for bolts being torqued appropriately and all holes (viewports/feedthroughs)closed up.

1.	Done-Remove Walking Plates from BSC 2 (Place in E-Mod Staging Cleanroom)
2.	Done-Replace dome on BSC2 (Check with SEI first: unlock ISI check cables)
3.	Done-Place hard cover on BSC2/HAM3 spool openings
4.	Done-Install curtains on HAM3 cleanroom
5.	Done-Move BSC cleanroom to beamtube by East Bay pipe bridge
6.	Done-Dis-assemble Work Platform (Place on floor by BSC7)
7.	Done-Move HAM3 cleanroom north as far as possible
8.	Done-Close gaps in cleanroom to contain BSC2 spool area
9.	Done-Move SEI related electronics over center of spool area
10.	Done-Insert small spool piece
11.	Done-Insert large spool piece
12.	Done-Install HAM3 east door
13.	Done-Move cleanroom from pipe bridge area to HAM4-plug in-turn on
14.	Done-Call for HAM4 cleaning
15.	Done-Install HAM2/1 east doors
16.	Done-Install HAM 2/3 west doors
17.	Done-Install BSC1 viewports
18.	Done-Remove HAM4 north door
19.	Done-Install blank on septum plate between BSC2 and HAM4
20.	Done-Install HAM4 north door
21.	Torque all bolts (Except HAM1 and HAM4)
22.	Check for holes

WP3837. h1iopsush2a model was changed to replace the WD part monitoring the PRM suspension top OSEM with the AC_ONLY variant. This means that only an RMS perturbation to the PRM suspension will trigger a DACKILL event. All the other suspension OSEMS being monitored by this IOP model (PR3, MC1, MC3) continue to monitor both RMS and DC components. This change is required to permit the misalignment of PRM without a DACKILL being issued.

The user models were stopped, the iop model restarted, and then the user models started. It was noted that the burt restore of the safe.snap files for h1susmc1, h1susprm and h1suspr3 models gave errors.

To complete the change, the removed PRM epics channels were removed from the WD MEDM screens and h1iopsush2a's safe.snap.

A DAQ restart was performed to bring the EDCU up to date. Unfortunately the DAQ restart caused problems with the mx streams for the frontends h1susb123, h1susauxh34,h1seib1, which all required a restart of their streamers. As had been previously noted, these streamers restarts caused short term glitches in h1psl0's daq data stream.

I tracked alignment changes between locked and unlocked and changes in optic alignment are small. Largest change is IM1 that changed by -175 counts in pitch (I don't have a calibration for this channel).  All other optics are less than 100um, and most under 50um.  This supports my evaluation in January that locked vs unlocked changes to the optic alignments are small and easily fixed with small tweaks to their alignments.

Checklist thru #13 completed before Mark and crew left last night. Major gaps on HAM4 cleanroom closed up.We found a septum blank, O-ring and appropriate fasteners for HAM4. I added a couple of items at the bottom of the list: torquing bolts and looking for holes.

1.	Done-Remove Walking Plates from BSC 2 (Place in E-Mod Staging Cleanroom)
2.	Done-Replace dome on BSC2 (Check with SEI first: unlock ISI check cables)
3.	Done-Place hard cover on BSC2/HAM3 spool openings
4.	Done-Install curtains on HAM3 cleanroom
5.	Done-Move BSC cleanroom to beamtube by East Bay pipe bridge
6.	Done-Dis-assemble Work Platform (Place on floor by ?????)
7.	Done-Move HAM3 cleanroom north as far as possible
8.	Done-Close gaps in cleanroom to contain BSC2 spool area
9.	Done-Move SEI related electronics over center of spool area
10.	Done-Insert small spool piece
11.	Done-Insert large spool piece
12.	Done-Install HAM3 east door
13.	Done-Move cleanroom from pipe bridge area to HAM4-plug in-turn on
14.	Done-Call for HAM4 cleaning
15.	Done-Install HAM2/1 east doors
16.	Done-Install HAM 2/3 west doors
17.	Install BSC1 viewports
18.	Remove HAM4 north door
19.	Install blank on septum plate between BSC2 and HAM4
20.	Install HAM4 north door
21.	Torque all bolts
22.	Check for holes

Attached are plots of dust counts > .3 microns and > .5 microns in particles per cubic foot requested from 5 PM April 23 to 5 PM April 24. Also attached are plots of the modes to show when they were running/acquiring data.

mode:
Connecting to NDS Server h1nds1 (TCP port 8088)
Connecting.... done
13-04-23-23-59-47T0=13-04-24-00-00-00; Length=86400 (s)
1080 seconds worth of data was unavailable on this server
1440.0 minutes of trend displayed

status:
Connecting to NDS Server h1nds1 (TCP port 8088)
Connecting.... done
13-04-24-19-34-47T0=13-04-24-00-00-00; Length=86400 (s)
1080 seconds worth of data was unavailable on this server
1440.0 minutes of trend displayed

.3 microns:
Connecting to NDS Server h1nds1 (TCP port 8088)
Connecting.... done
1080 seconds worth of data was unavailable on this server
1440.0 minutes of trend displayed
read(); errno=9
read(); errno=9
T0=13-04-24-00-00-00; Length=86400 (s)
No data output.

.5 microns:
Connecting to NDS Server h1nds1 (TCP port 8088)
Connecting.... done
13-04-24-19-34-47T0=13-04-24-00-00-00; Length=86400 (s)
1080 seconds worth of data was unavailable on this server
1440.0 minutes of trend displayed

Greg Mendell, Joe Areeda, Robert Schofield, Josh Smith

The Department of Energy conducted seismic shear tests near LHO from April 6 to April 20th using a shaker truck. The last attachment is a google maps image from Robert showing the exact location of the shaker truck between 18:00 and 20:00 UTC on April 10. The first attachment is a spectrogram of H1:PEM-CS_SEIS_LVEA_VERTEX_Z_DQ over those same two hours. The injections were also visible in seismometers located at End-Y, Mid-X , and the vault, as shown in the other three attachments.

These spectrograms were made with ligodv-web https://ldvw.ligo.caltech.edu/viewer a web-based data viewer, using the default settings except 4 seconds per fft instead of 1 second. 

The /ligo file system needs repair, so we are making it unavailable for a short time, hopefully a few minutes.

0800-1100 Apollo installing spool between HAM3/BSC2

0900 - Keita transitioned LVEA to laser hazard

0944 - Keita was able to flash the mode cleaner and transitioned LVEA back to laser safe

1000-1600 Michael R and Craig C working in H2 PSL enclosure

1054 Mark B taking quick spectra on PRM----ok with Apollo flanging next door at HAM 3

1230 Dave B updating and restarting PSL user models and DAQ

1528 Cheryl accidentally tripped and reset PRM watchdogs, which then tripped HAM2-ISI. Justin and Jim attempted to reset the ISI watchdog, the user DACKILL and the IOP DACKILL. We were apparently successful.

The corner Beckhoff system was switched to the new target area. The old one is now defunct. Almost all hardware is now linked in the system manager and available in the PLCs. 

After the HAM3 cleanroom was pushed as far north as possible, the curtains were modified to closely interface with BSC2 and provide clean space for the spool replacement. The small spool piece was inserted  and attached to the BSC2 flange. Next, the large spool piece was inserted and attached to the small spool piece. The large spool piece is very close to the HAM3 flange. Once the hard cover on the spool piece and the soft cover on HAM3 are removed, the bellows will be extended so that the spool is married to the chamber. I expect that all spool and appropriate flange bolts will be torqued before the Apollo crew leaves for the day. That gets us through #11 on the checklist.

1.	Done-Remove Walking Plates from BSC 2 (Place in E-Mod Staging Cleanroom)
2.	Done-Replace dome on BSC2 (Check with SEI first: unlock ISI check cables)
3.	Done-Place hard cover on BSC2/HAM3 spool openings
4.	Done-Install curtains on HAM3 cleanroom
5.	Done-Move BSC cleanroom to beamtube by East Bay pipe bridge
6.	Done-Dis-assemble Work Platform (Place on floor by BSC7)
7.	Done-Move HAM3 cleanroom north as far as possible
8.	Done-Close gaps in cleanroom to contain BSC2 spool area
9.	Done-Move SEI related electronics over center of spool area
10.	Done-Insert small spool piece
11.	Done-Insert large spool piece
12.	Install HAM3 east door
13.	Move cleanroom from pipe bridge area to HAM4-plug in-turn on
14.	Call for HAM4 cleaning
15.	Install HAM2/1 east doors
16.	Install HAM 2/3 west doors
17.	Install BSC1 viewports
18.	Remove HAM4 north door
19.	Install blank on septum plate between BSC2 and HAM4
20.	Install HAM4 north door

WP 3820.

I upgraded all four psl models (dbb, fss, iss, pmc) to the latest version. The steps are:

• check current safe.snap files give no errors (they did not)
• svn revert the adl files (they were modifed when reverse merged back to an earlier version)
• svn update the userapps/release/psl
• make, make-install the models
• stop the running models, start up the new models
• check if the existing safe.snaps give errors, only fss could not find some of its channels (iss, pmc, dbb may still be incomplete)
• restart the DAQ to clear 0x2000 error (incompatible fast ini file) on iss and fss models

First look through the top level medm screens looks good. On the fss screen the RFPD_DC signal is white because this channel has been removed.

I'll hand it over to Michael R for further check out. This closes WP3820

I'm going to turn off the damping on PRM for a 20 minute window starting at about 10:55 am, to get a spectrum to triple-check for rubbing.

EE sees a fault in the Kaman Satellite box which is mounted in the Pier Pod (See LHO aLogs 6162 & 6175).  These Kaman Boxes are tuned/calibrated to the actual Inductive Position Sensor (IPS) coils but changing these out is a bit more invasive.  Can be done but will take some time.  Meanwhile we have replaced the Pier Pod with another.
Bad/Removed PierPod/Kaman: S1202914/S0812221-06-04
Replaced w/: S1202909/S0812221-02-10

This will at least allow data for positioning to be trended.

Dave B., Patrick T.

This work falls under permit number 3833.

This afternoon we installed new EPICS IOC code for the dust monitors in /ligo/apps/linux-x86_64/epics-3.14.12.2_long_sc. The module code is met_one_227b-1.0.0 and the IOC code is dust_met_one_227b-1.0.1. The targets are in /ligo/lho/h0/target. The IOCs are running on h0epics2.

The code changes the channel names as follows:

H0:PEM-LVEA_DST$(ID)_3             ->  H0:PEM-CS_DUST_LVEA$(ID)_300NM_PCF
H0:PEM-LVEA_DST$(ID)_5             ->  H0:PEM-CS_DUST_LVEA$(ID)_500NM_PCF
H0:PEM-LVEA_DST$(ID)_MODE          ->  H0:PEM-CS_DUST_LVEA$(ID)_MODE
H0:PEM-LVEA_DST$(ID)_RH            ->  H0:PEM-CS_RELHUM_LVEA$(ID)_DUSTMON
H0:PEM-LVEA_DST$(ID)_TEMP          ->  H0:PEM-CS_TEMP_LVEA$(ID)_DUSTMON_DEGF
H0:PEM-LVEA_DUST_LOC_$(ID)_STATUS  ->  H0:PEM-CS_DUST_LVEA$(ID)_STATUS

H0:PEM-LAB_DST$(ID)_3              ->  H0:PEM-CS_DUST_LAB$(ID)_300NM_PCF
H0:PEM-LAB_DST$(ID)_5              ->  H0:PEM-CS_DUST_LAB$(ID)_500NM_PCF
H0:PEM-LAB_DST$(ID)_MODE           ->  H0:PEM-CS_DUST_LAB$(ID)_MODE
H0:PEM-LAB_DST$(ID)_RH             ->  H0:PEM-CS_RELHUM_LAB$(ID)_DUSTMON
H0:PEM-LAB_DST$(ID)_TEMP           ->  H0:PEM-CS_TEMP_LAB$(ID)_DUSTMON_DEGF
H0:PEM-LAB_DUST_LOC_$(ID)_STATUS   ->  H0:PEM-CS_DUST_LAB$(ID)_STATUS

H0:PEM-EX_DST$(ID)_3               ->  H0:PEM-EX_DUST_VEA$(ID)_300NM_PCF
H0:PEM-EX_DST$(ID)_5               ->  H0:PEM-EX_DUST_VEA$(ID)_500NM_PCF
H0:PEM-EX_DST$(ID)_MODE            ->  H0:PEM-EX_DUST_VEA$(ID)_MODE
H0:PEM-EX_DST$(ID)_RH              ->  H0:PEM-EX_RELHUM_VEA$(ID)_DUSTMON
H0:PEM-EX_DST$(ID)_TEMP            ->  H0:PEM-EX_TEMP_VEA$(ID)_DUSTMON_DEGF
H0:PEM-EX_DUST_LOC_$(ID)_STATUS    ->  H0:PEM-EX_DUST_VEA$(ID)_STATUS

H0:PEM-EY_DST$(ID)_3               ->  H0:PEM-EY_DUST_VEA$(ID)_300NM_PCF
H0:PEM-EY_DST$(ID)_5               ->  H0:PEM-EY_DUST_VEA$(ID)_500NM_PCF
H0:PEM-EY_DST$(ID)_MODE            ->  H0:PEM-EY_DUST_VEA$(ID)_MODE
H0:PEM-EY_DST$(ID)_RH              ->  H0:PEM-EY_RELHUM_VEA$(ID)_DUSTMON
H0:PEM-EY_DST$(ID)_TEMP            ->  H0:PEM-EY_TEMP_VEA$(ID)_DUSTMON_DEGF
H0:PEM-EY_DUST_LOC_$(ID)_STATUS    ->  H0:PEM-EY_DUST_VEA$(ID)_STATUS

Dave renamed the minute trend files to reflect these changes (directory name mapping is in the attached text file).
The medm screens, autoBurt.req files and the alarm handler configuration file were also updated to match these changes.

I also removed the transient period for showing alarms in the alarm handler configuration file, updated the guidance and added some dust monitor locations.

The new IOC code also fixes a division error when the sampling time is zero in the particles per cubic foot calc records.

TO DO: I still need to update the alarm limits and severities.

Each ODC channel has a Summary Bit that is used to indicate whether each system is in a nominally good operating state.  This bit is generated by checking that the necessary bits in the ODC channel are ON, as specified by the subsystem commissioners.  With the input from Jeff Kissel and Sebastien Biscans, we have set all of the EPICS variables needed to correctly populate the Summary bits for all active ODC channels in H1.  The EPICS variable Bitmasks are decimal numbers that correspond to a bitmask, where for each bit in the ODC channel that should be on when the system it is characterizing is in a good working state.  Here is an example:
H1:SUS-BS_ODC_COMBINE_ODC_BITMASK = 126
In binary, this is 0111 1110, which indicates that bits 6, 5, 4, 3, 2, and 1 should all be ON when the SUS-BS is operating nominally.  If you are curious what those bits mean, you can do the following:

controls@opsws1:~ 0$ caget H1:SUS-BS_ODC_BIT1
H1:SUS-BS_ODC_BIT1             Master Switch ON/OFF Status
controls@opsws1:~ 0$ caget H1:SUS-BS_ODC_BIT2
H1:SUS-BS_ODC_BIT2             DACKILL Status

These BITMASK EPICS records were set using scripts located in /ligo/home/ryan.fisher, and attached to this entry (with modified file extensions so the alog will post them).

With this completed, the EPICS description strings for the bits set and the MEDM screens reworked, we believe we have most of the active SUS and SEI subsystem ODC channels operational.  

The remaining systems for which ODCs need to be implemented under SUS and SEI are: the HAUX (HAM-Auxilliary) front ends and the HAM-ISI front ends.  The latter should be implemented with the next update from the cds_user_app svn (anticipated Mar 15).

We will be generating new safe.snap files specifically for the updated ODC EPICS settings for all models and sending them to CDS-announce for incorporation into the SVN and live systems.

Ryan Fisher, Stefan Ballmer

We have set the EPICS records for the labels that describe the ODC bits for the SUS and ISI models currently running in H1.*  The labels provide a short description of what every bit in each ODC channel represents, for each ODC channel.  The higher order bits in the ODC channels that do not have labels are currently unused, but may be used in the future.

These records were set using scripts located in /ligo/home/ryan.fisher, and attached to this entry.  

* Excluding H1:SUS-TMSY_ODC_BIT* for now.