TITLE: 02/14 Eve Shift 00:00 – 08:00 (16:00-00:00), all times posted in UTC

STATE of H1: Observing

INCOMING OPERATOR: Patrick

SHIFT SUMMARY: Had a sudden lockloss, followed by a few re-locks that came very close to sticking (MOVE_SPOTS, then NLN for 12 seconds). Re-locking was likely worsened by the high microseism we’ve been having.

LOG: 

02:38 (18:38) Sudden lockloss.

04:52 (20:52) At NLN, going into Observing. No SDF diffs

[Rick, Camilla, Niko]

On Tuesday we went to EX to perform a routine end station calibration. In an effort to solve our issues with reading the Working Standard temperature sensor (which is incorrect while it is being powered by the Tx module), we instead powered the Standard with a spare power supply (calibration_setup.jpeg). We then installed a temperature sensor on the receiver side (sensor_position.jpeg), with a probe inside the receiver module enclosure (probe_placement.jpeg).

Beam spot aligment looked slightly off (beam_alignment,jpeg), we need to check against the spot position from the previous EX calibration to see if this is a new trend or not. Analysis shows a drift in the RxPD force coefficient, indicating that there may be some slight clipping occurring. We will continue to investigate this.

Analysis results have been added to the pcal svn.

Ops Shift Transition: 02/14/2020, Eve Shift 00:00–08:00 (016:00-00:00) - UTC (PT)

State of H1: Locked

Intent Bit: Observing

Weather: 10-35 mph wind

Primary 0.03 – 0.1Hz: 0.1 um/s

Secondary 0.1 – 0.3Hz: 1 um/s

Outgoing Operator: TJ

Quick Summary: Locked and Observing for 2 hours. High wind and microseism today, but the range doesn’t seem to be too strongly affected.

TITLE: 02/14 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 116Mpc
INCOMING OPERATOR: Niko
SHIFT SUMMARY:High useism and wind, but we have held and had some time commissioning.
LOG:

• 1629 Tyler driving down arms checking on tumbleweeds
• 1653 Tyler going to start clear the Xarm
• 1828 Tyler done
• 1908 Vanessa to MX
• 2030 Out of Observing for Commissioning
• 2043 Lock loss
• 2213 NLN
• 2231 Observing
• 2302 Commissioning
• 2320 Observing

Since we are considering changing our DARM offset (Sheila has some nice plots forthcoming), I have measured the LSC FF transfer functions that we are going to need. 

I used a 13.72 X0 fringe offset to give 40mA sum on DCPDs. (Previous tests done in the last week were with 41mA of DCPD sum, but 40mA seemed like a nice round number, 2x our current 20mA sum).  I measured SRCL, MICH, and PRCL to DARM, with their current FF filters engaged and operating, so these will be iterative filters. The PRCL iterative excitation, and the FF_to_DARM excitation had to be reduced in amplitude by a factor of 2 so that I didn't saturate the DCPDs. The PRCL iterative could have been reduced a bit more.

I'll fit these iterative transfer function measurements, so that they are ready to implement when we decide to change the DARM offset. 

FAMIS10548

Added 125mL to the crystal chiller.

Both filters looked clean and clear of debris.

There was a funnel in the crystal chiller fill area instead of the stopper when I arrived. I didn't see anything saying that this was on purpose, so I placed the stopper back in when I was done.

At 2030 UTC

TITLE: 02/14 Day Shift: 16:00-00:00 UTC (08:00-16:00 PST), all times posted in UTC
STATE of H1: Observing at 119Mpc
OUTGOING OPERATOR: Patrick
CURRENT ENVIRONMENT:
    SEI_CONF state: WINDY
    Wind: 18mph Gusts, 8mph 5min avg
    Primary useism: 0.08 μm/s
    Secondary useism: 0.48 μm/s
QUICK SUMMARY: ETMY violin modes 1 & 6 are elevated, its windy on site, and useism is elevated. Fresh lock.

TITLE: 02/14 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 118Mpc
INCOMING OPERATOR: TJ
SHIFT SUMMARY: One lock loss from observing. Recovery took a couple of attempts but required no intervention.
LOG:

09:53 UTC GRB-Short 
INJ_TRANS set to INJECT_KILL
E363961
Fermi
Trigger ID	603366762
TRIGGER_DUR:     0.016 [sec]
Stand Down
12:14 UTC INJ_TRANS set to INJECT_SUCCESS

14:14 UTC Lock loss from observing.
14:54 UTC Lock loss from ENGAGE_SOFT_LOOPS.
15:34 UTC Observing. No SDF differences.

I think there may have been a 4.6 magnitude earthquake in Canada at 11:17:05 UTC that qualified for changing SEI_CONF to EARTH_QUAKE, but did not get announced by verbal.

H1:ASC-AS_A_RF36_Q_PIT_OFFSET and H1:ASC-AS_A_RF36_Q_YAW_OFFSET data for a series of locking attempts and successful NLN locks.

The average pitch offset is larger for the unsuccessful locking attempts vs the successful NLN locks.

This is a partial list of the 63 locking  attemps previously alogged.

Have remained locked and in observing. No issues.

TITLE: 02/14 Owl Shift: 08:00-16:00 UTC (00:00-08:00 PST), all times posted in UTC
STATE of H1: Observing at 119Mpc
OUTGOING OPERATOR: Cheryl
CURRENT ENVIRONMENT:
    SEI_CONF state: WINDY
    Wind: 20mph Gusts, 14mph 5min avg
    Primary useism: 0.04 μm/s
    Secondary useism: 0.45 μm/s 
QUICK SUMMARY: No issues.

TITLE: 02/14 Eve Shift: 00:00-08:00 UTC (16:00-00:00 PST), all times posted in UTC
STATE of H1: Observing at 119Mpc
INCOMING OPERATOR: Patrick
SHIFT SUMMARY: locked all shift
LOG:

• 03:18:51 - H1 out of Observe
  • no change to H1, see alog 55090
• 03:20:19 _ H1 in Observe
• 06:10:59 - H1 out of  Observe
  • unlocked/relocked SQZ
• 06:14:14 - H1 in Observe