TITLE: 09/17 Day Shift: 1430-2330 UTC (0730-1630 PST), all times posted in UTC
STATE of H1: Observing at 143Mpc
INCOMING OPERATOR: Corey
SHIFT SUMMARY:
This morning's Lockloss for maintenance: 2024-09-17 15:19
Relocking after the ETMX DAC swap:
TMSX was off by a lot, realigned by hand.
Turned off SEI maintenance ENV
Reverted sliders to : 1410631523
Adjutsed sliders to get OSUMs back to a place where we had flashes.
Running Baffle_Align for TMSX
Using measured BPD values to center TMSX.
Old offset pitch -100.25911370237192 and yaw -107.50189039633354
New offset pitch -99.5599642875359 and yaw -108.61504480911252
H1:SUS-TMSX_M1_OPTICALIGN_P_OFFSET => -99.5599642875359
H1:SUS-TMSX_M1_OPTICALIGN_Y_OFFSET => -108.61504480911252
Turning off the test offsets to TMSX. (should be P -33.4, Y 30.5)
H1:SUS-TMSX_M1_TEST_P => OFF: OFFSET
H1:SUS-TMSX_M1_TEST_Y => OFF: OFFSET
TMSX dither alignment finished!
PZT Y TRIGGER NOT ON!
Running Baffle Align for ITMX
Using measured BPD values to center ITMX.
Old offset pitch -93.16362911805888 and yaw 109.68269245998749
New offset pitch -98.52206679818204 and yaw 107.62344936551601
H1:SUS-ITMX_M0_OPTICALIGN_P_OFFSET => -98.52206679818204
H1:SUS-ITMX_M0_OPTICALIGN_Y_OFFSET => 107.62344936551601
Turning off the test offsets to ITMX. (should be P -25.7, Y -19.0)
H1:SUS-ITMX_M0_TEST_P => OFF: OFFSET
H1:SUS-ITMX_M0_TEST_Y => OFF: OFFSET
ITMX dither alignment finished!
PZT Y TRIGGER NOT ON!
Baffle Align ETMX was ran,
Then ETMX and TMSX touched up by hand. Light on ALSX!!!
Locking started , reached PREP_DC_READOUT_TRANSITION
Fire Alarm! & Lockloss during the Fire drill.
Louis set some changes to the ETMX Gains for L1, L2,& L3. while H! was in down after that Lockloss. Please see https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=80141
Which caused an ALS X Arm Fault. Once we realized that there was an error in the Gain due to the DAC being 28 and not 32 bit. please see Alog from Marc.
Letting Marc and Louis chat, we all learned that there is already gain being applied to compensate for the extra bits and Louis didn't need the gain changes. Thus he was adding more gain to the existing gain which is good for guitars, but bad for IFO's .
Louis's gains have now been reverted.
This allowed us to get past locking ALS.
Poked the BS a little to catch DRMI.
NLN reached at 22:08 UTC!!!
22:12 UTC pydarm measure --run-headless bb was ran from NLN_CAL_MEAS [700]
@ 23:15 UTC pydarm measure --run-headless bb was ran aqgain to compair with the first one that was taken.
Success!!! We are in Observing with the NEW DAC.
LOG:
| Start Time | System | Name | Location | Lazer_Haz | Task | Time End |
|---|---|---|---|---|---|---|
| 23:58 | SAF | H1 | LHO | YES | LVEA is laser HAZARD | 18:24 |
| 15:05 | HWS | Camilla | LVEA | YES | Opening the HWFS table | 15:52 |
| 15:14 | EE | Fil | LVEA & HAM Shaq | Yes | Helping Camilla with Power and working out in the FTCE. | 17:52 |
| 15:15 | VAC | Gerardo | Mech room | n | Ion pump work | 15:48 |
| 15:15 | EE | Marc | EX | N | DAC swap | 16:35 |
| 15:22 | IAS | Jason | LVEA | laser hazard | Changing farrow settings. | 15:31 |
| 15:23 | FAC | Karen | WoodShop | n | Technical cleaning | 16:23 |
| 15:26 | SEI | Jim | His office | N | BRS Damping. | 17:26 |
| 15:28 | FAC | Chris | EY | N | HVAC Filter swap. | 17:25 |
| 15:31 | FAC | Contractor | Arms | N | Outhouse maintenace. | 18:31 |
| 15:38 | VAC | Norco | CP2 (CS) | n | LN2 fill | 17:38 |
| 16:30 | PEM | Genivive | LVEA | Yes | Looking for PEM parts Accelerometer & Mic. | 16:58 |
| 16:31 | FAC | Karen & kim | LVEA | Y | Technical cleaning | 17:11 |
| 16:54 | PEM | Sam & Genivive | LVEA | YES | Looking for PEM parts | 17:09 |
| 17:10 | OPS | TJ | LVEA | Yes | LVEA Sweep | 17:40 |
| 17:12 | Access Laser | Camilla , TJ, +2 | LVEA | yes | Show Access Laser the CO2 lasers | 18:12 |
| 17:54 | PEM | Genivive & Sam | Ham Shaq | N | Checking PEM mic and sensors | 18:36 |
| 18:09 | FAC | Chris | EX | n | hvac fILTER SWAP | 19:04 |