| Work Permit | Date | Description | alog/status |
| 6244.html | 2016-10-11 11:46 | Look at POP-X whitening chassis figure our why gains can only be odd values. Also look at second stage filter not engaging properly. Possibly replace chassis | The modbus internal readback is broken,but the device is functional, i.e., its input and outputs work as expected. Mark as "wont fix". |
| 6243.html | 2016-10-11 10:11 | At the request of DetChar, update the thresholds of the PSL ODC to account for the now operational HPO. A review of the current PSL ODC thresholds shows the only bit in need of updating is PSL ODC Bit 12: PMC Transmission Limit OK. The threshold will be changed from 11.5 to 50, to account for the increased power transmitted by the PMC. | 30405 |
| 6242.html | 2016-10-11 08:13 | migrate virtual machines from vmweare to proxmox | 30429 |
| 6241.html | 2016-10-11 08:04 | Briefly run scroll air compressor(s) on Vent/Purge-air supply skid*Lock-out/Tag-out power to Vent/Purge-air skid*Perform scheduled maintenance on scroll compressors #1 and #2 | preventative maintenance, will be a famis task and this is the initial entry |
| 6240.html | 2016-10-10 17:05 | Pico ctrl report error when off: revert logic - LO readback for spares flicker: use nom. of -100 to disable test - EOM driver RF monitor: increase tolerance to 1.5dB | 30406, 30429 |
| 6239.html | 2016-10-10 16:51 | Fix whitening ctrl in QPD | 30412, 30429 |
| 6238.html | 2016-10-10 16:13 | CALCS model update. A filter block will be added to the DARM_CTRL signal path (implemented at LLO alog 28268), changes to BUFFER_AND_AVERAGE.c code will be applied (LHO alog 30293). | 30411, 30429 |
| 6237.html | 2016-10-10 15:43 | Remove the Solaris QFS/NFS server h1ldasgw2. This was installed in the summer to NFS export frames to the NDS servers. It has served corrupted frames, so we will return to the previous configuration. | Did not remove h1ldasgw2, WP#6237, do to time constraints; will defer this to later in the week |
| 6236.html | 2016-10-10 12:46 | sister WP to 6234. Change h1susitmx and h1susetmx model code to read HWWD chassis status. DAQ restart required. Modify MEDM and alarms. | 30429 |
| 6235.html | 2016-10-10 11:50 | add an experimental feed forward path for jitter correction | 30412, 30429 |
| 6234.html | 2016-10-10 11:10 | Per FRS 4504, finish installation of the Hardware Watchdog (HWWD) electronics for ETMX and ITMX. Currently, ETMY and ITMY electronics are installed, with ITMY in a monitor-only mode. Plan is to install ETMX and ITMX in monitor-mode. List of items that need to be done: 1. Install D1300642 2. Pull in new BNC cabling to ISI Coil Drivers 3. Pull binary cabling DB9 4. Power electronics For complete installation, the ISI Coil Drivers (ETMX, ITMX, and ITMY) will need to be replaced with modified units that enable the HWWD electronics to power off the coil drivers. New work permit will be started for switching out the coil drivers. | 30418 |
| 6233.html | 2016-10-10 10:43 | Reconfigure lhoepics.ligo-wa... to host an EPICS to web bridge. This may interrupt the remote access medm. Also revisit the process for exporting the medm screens from CDS to ensure they still work after the recent shibboleth IdP changes. | 30372 |
| 6232.html | 2016-10-10 10:38 |
Install a newer daqd framewriter on h1fw0 and h1fw1. This will use the framewrite tested on h1fw2 which writes out checksum files with each frame file written. This will likely also involve a change to the wiper script to properly handle the checksum files |
30429 |
| 6231.html | 2016-10-10 10:24 | GDS and DMT Update GDS to gds-2.17.10, the DMT calibration code to gstlal-calibration-1.0.4-1 and install new calibration filters. Patch summary for GDS: a) t-domain lowpass filter and overlapped PSD measurements for SenseMon. b) a fix to prevent writing frames with wrong times. c) Cookie file for dmt-viewer d) prevent framelink from terminating immediately if the connection to the peer node fail. Patch summary for calibration: - Bug fix for coherence gating in kappa calculation - Explicit check on frame start time being integer multiple of frame duration - Increased debugging messages available for when discontinuities are encountered ALSO: install new calibration filters as available | 30409, 30403, & 30429 |
| 6230.html | 2016-10-10 08:58 | Replace bulkhead N connector for the 45MHz RF signal. Check associated field cables/connectors. | 30394, 30375 |
| 6229.html | 2016-10-10 08:50 | Update the TCS front end model to the latest. DAQ restart required. | 30384, 30429 |
| 6228.html | 2016-10-10 08:23 | PCal End X Transmitter module maintenance measurements and end station calibration. This will require that EX VEA is laser hazard. No viewports will be exposed during this work. | |
| 6227.html | 2016-10-10 08:23 | Complete ECR E1500325: Update HEPI Model to bleed off saturations from watchdogs--currently a weekly chore manually done by operators vis FAMIS. ISI already have this feature and has been working trouble free for months. | 30408, 30373, & 30429 |
| 6226.html | 2016-10-10 08:17 | Perform annual septic tank pump out. This includes all septic tanks on site. A report will be generated for LIGO and the DOH. | Contractor canceled. They will reschedule |
| 6225.html | 2016-10-09 10:17 | Remove viewport covers on HAM2 | 30364 |
| 6224.html | 2016-10-07 08:52 |
Install a new DAQD build on the framewriter that provides checksum information of each frame file that is writen, and reflecting some of this information into EPICS PVs. This will be done on h1fw2 as a test prior to deployment on the production frame writers. This will require remote access to CDS today for Jonathan. |
30292 |
| 6223.html | 2016-10-07 08:21 | Update GDS software to branch gds-2.17.9. This implements updated security code in dmtviewer to handle ecp cookie files now required for authentication. The user setup scripts will be modified to add an environment variable to specify the location of the ecp cookie file that would be generated by a user. | This version 2.17.9 is for control room software, version 2.17.10 is for dmt-gds. |
| 6222.html | 2016-10-06 16:10 | (late WP) Move CPs and ITMs to confirm the sled reflection from the ITMY CP. Swap sleds (790nm and 840nm) on the HWS table. Repeat the process to see whether the reflection off the CP is wavelength depended. | done |
| 6221.html | 2016-10-06 13:52 | Coordinate test running of pumps connected to RGA at BSC5 with Robert S. so as to measure potential intrusiveness into commissioning activities. | pending, pump isolated but not running |
| 6220.html | 2016-10-06 10:16 | Add jitter measuring signals of DBB to frame. | 30287 |
| 6219.html | 2016-10-05 14:34 | Place a new photodiode in the EOM pickoff path and use this as PD_A sensor to close the ISS 1st loop. PD_B will remain untouched and therefore remain functional. | done |
| 6218.html | 2016-10-05 13:26 | Replace the 16 Batteries in the Aux cabinet of the UPS. This work will be done when we are out of lock but not necessarily when we are in maintenance. The design allows for this work to be done while the output is energized. | Replaced 15 batteries, the 16th was damaged and we are waiting for its replacement |
| 6217.html | 2016-10-05 09:06 | Complete ECR E1600042 FRS 4703: Remove final traces of DACKILL from HAM ISI model: Make changes, recompile, etc restart. Cleanup HAM & BSC medms of dead widgets. Remove RESET ALL from medms. | 30408, 30373, & 30429 |
| 6216.html | 2016-10-05 08:14 | As part of debugging the cooling problem with the laser, at the next window of opportunity I want to do a test where we replace the front end and power meter circuit flow sensors with a current source that mimics the output from the flow sensor. This check the flow rate readout electronics. | done, electronics chain appeared to be ok |