TITLE: 03/26 Eve Shift: 23:00-07:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 100Mpc
INCOMING OPERATOR: Jeff
SHIFT SUMMARY: Lock loss during calibration measurements. Jenne and Sheila helped recover. Had to do some tweaking of the BS / PRM / SRM. Did not need an initial alignment. Keita had me reload the INJ_TRANS guardian and request INJECT_SUCCESS. Adam had me reload the INJ_TRANS guardian a couple of times later. I turned off the lights in the LVEA before going to observing. There was a random drop out of observing due to the laser power guardian (see log).
LOG:

23:29 UTC NLN_CAL_MEAS -> NLN.
23:41 UTC NLN -> NLN_CAL_MEAS.
00:09 UTC NLN_CAL_MEAS -> NLN.
00:25 UTC NLN -> NLN_CAL_MEAS.
00:49 UTC Lock loss. LSC Servo Board Split Voltage is High.
01:01 UTC Per Keita: Load INJ_TRANS. Requested INJECT_SUCCESS.
01:37 UTC Per Adam: Load INJ_TRANS.
02:03 UTC Per Adam: Load INJ_TRANS.
02:17 UTC Back to NLN
02:20 UTC Craig running calibration measurement. Set observatory mode to calibration.
02:57 UTC Turned off lights in the LVEA
03:29 UTC Observing
05:07 UTC Dropped out of observing. Laser power guardian went into error. Craig stopped and exec the laser power guardian to restart it. It is continuously writing to H1:PSL-POWER_SCALE_OFFSET and momentarily failed to connect to the channel. Craig put back to observing.