| Work Permit | Date | Description | alog/status |
| 6508.html | 02/28/17 11:10 AM | Bug fix to get correct signal from LSC to ASC. Should be POPDC, but is accidentally REFLDC. | 34461 & 34470 |
| 6507.html | 02/28/17 10:00 AM | Update default version of GDS code to gds-2.17.9-2 to fix an issue with foton (FRS ticket 7447, Bugzilla 1075) and an issue with the NDS2 interface for diaggui to collect reduced data set channel names along with raw names (Bugzilla 1072). | 34457 & 34470 |
| 6506.html | 02/27/17 04:02 PM | Change the model to map what are used to be ASC-AS_D channels to PSL-DIAG_BULLSEYE channels. Add four 2k channels from the bulls eye to the frame. https://services.ligo-la.caltech.edu/FRS/show_bug.cgi?id=7515 https://dcc.ligo.org/E1700074-v1 | 34460 |
| 6505.html | 02/27/17 02:56 PM | Pull ADS block from LLO so that both sites have all the functionality they need, but we can both be using the same model again (they'll pull our full version after I finish). Model will be installed on maint. day, along with bullseye work permit work. | 34470 |
| 6504.html | 02/27/17 02:02 PM | With IFO unlocked (during maintenance) try to identify sources of lines in power monitors which are coherent with lines in DARM. If we identify them, repeat test with locked IFO later. | |
| 6503.html | 02/27/17 01:50 PM | Re-terminate HV Ion pump connector (Y2-8). Cable will be tested with the HiPOT tester to 5kV. Work will require access into End Y mechanical room. See alog 34385. | 34466 |
| 6502.html | 02/27/17 01:46 PM | Add RACCESS numeric EPICS records to DAQ for trending (DAQ restart required). Create new target h1raccess and add all EPICS channels to autoBurt.req for hourly autoburt backup. | 34470 |
| 6501.html | 02/27/17 09:52 AM | Regular PSL Maintenance: 1) Temperature tune HPO pump diodes after 2-25-2017 pump diode current increase. 2) Tweak beam alignment into PMC. For these activities the IFO needs to be DOWN and the ISS needs to be OFF. | 34456 |
| 6500.html | 02/24/17 12:56 PM | Widen bandwidth of filter in OAF BLRMS. No change in SDF. The new filter will be loaded while we are not in observing mode. | |
| 6499.html | 02/24/17 10:09 AM | Suspect another short in ion pump HV cable. Marc will test cable. | 34466 |
| 6498.html | 02/23/17 10:39 PM | Measure beam spot positions on IMC mirrors. Intended target of time to do this measurement is during PEM measurements at LLO, expected to take place 24 Feb 2017. | |
| 6497.html | 02/23/17 04:43 PM | I will perform a coherence test by taking coherence between the bullseye sensor and DARM as a function of PR3 spot position by intentionally misaligning interferometer mirrors. This will be done during the commissioning window tomorrow (Feb.24). | |
| 6496.html | 02/23/17 01:22 PM | Run new fiber from server room to valve room, part of wireless upgrade. Work will involve removing ceiling tiles along main hallway in OSB. | |
| 6495.html | 02/23/17 01:11 PM | Inventory OneStop cables on all front end computers, MSR, EX, EY, MX, MY, H2-building. Taking photos, non-invasive. | |
| 6494.html | 02/22/17 10:48 AM | Deploy T240 Seismometer near BRS for staging to install in BRS Thermal Housing next Maintenance Day | 34462 & 34463 |
| Previous W.P.s | |||
| 6492.html | 2017-02-17 17:25 | Removed beam dump from the FLIR camera path (both CO2X and Y). This will be the new nominal configuration. | 34459 |
| 6472.html | 2017-02-09 16:29 | De-energize LLCV electric actuators, remove electric actuator housing domes, lift 4-20mA and 24VDC wires from actuator and remove 1/2" flexible conduit from housings, tighten 1/2 conduit elbows to ensure good contact with their sealing o-rings, reconnect conduit to elbows, re-land wires, re-install housing dome and re-energize actuators | 34133, 34151, & 34468 |
| 6457.html | 2017-01-26 13:43 | Remove Coil Driver BIO Connections to WD: Modify & Compile models; DeIsolate Platform; Restart model; Isolate ISI; DAQ ReStart required. | 33776, 33799, & 34470 |