2023-02-02 Meeting notes

1:07

Words from John

John

• John still unavailable

1:08

Words from Randy

Randy

• We’re trying to get the 23B instrument availability time set up. Planning on KCWI shared risk for first two months of the semester. NASA can’t propose for shared risk time, so keeping it to the first two months.

• K2 AO will be going through a shutdown period. Mid-Aug to mid-Nov for new RTC.

• Kyle - Thinking about the NIRC2 electronics upgrade, is that a good time to replace the NIRC2 motion controller interface. Carlos- Thinking about end of this fiscal year, so there will be some overlap.

• Greg is organizing a Team Keck Meeting, get everything thinking about science and research more. For that meeting, put together a slide summarizing what everyone is up to. Think about what collaborations we can forge. Repeated meeting, 2nd Tuesday of every month from 3-4. Think about additional people for future meetings, but focus on astronomy.

• 23B LRIS off 8 weeks for refurbishment

• Instrument availability out Monday
  
  

1:22

KPF update

Josh

• KPF - 8 subsystems 3 spectrographs

• Main spectrograph good RV precision over short time periods hitting 27 and 35 cm/s, want to see over longer time scales.

• Thermal transients from LN2 fills, using autofill. Not using LN2 generator, using 180l dewars. Filling every other day, uses 60l a day.

• FIU system is working well on bright stars, still needs some optimization. Ability to center star on fiber needs some work. 50 mas accuracy, currently at 200 mas.

• ADC suffers from same centering problem.

• This adds 15 cm/s to the error budget.

• 2 mechanisms with some flakyness.

• Ca HK spectrograph seems good.

• Exposure meter DRP is being refined, hasn’t been used yet to end an exposure.

• Calibration bench is working well, but the fiber alignment needs some work with fiber steering.

• LFC is not quite turnkey, but undergoing software update. Might need human check every couple days.

• Solar calibrator is installed, but needs some electrical work to finish, hoping for the end of the month.

• Software - 23 ktl services, 62 dispatchers, mostly done. Working testAll with Josh Riley’s script

• Translator - work ongoing, running at night with equivalent of DSI OBs running locally. System used to run scheduled calibrations.

• KPF grafana very useful for troubleshooting

• Instrument GUIs 2 of 4 complete

• kvnc is running, but not conk yet

• Instrument webpage needs some work

• -Carlos KPIC has experience with putting stars on fiber, maybe look at their design

• -Randy DRP running? -Josh DRP is running, running local instance

• -Randy - Morning twilight? -Sherry - Possibly use K1 morning twilight if not used by LRIS observers to monitor RV standards. If possible KPF team would jump on and perform the observations.

• March 14th/April 8th for starting KPF observations

• -Randy - is FIU / AO bench coordination working well? Yes, for the most part. Might be important for morning twilight.

• If KPF warms up, can in cold in days, but the problem is that you reset your instrument stability.

1:50

Deimos mask design software update

Michael

Engineering successful for new mask design software.

Some offsets between milled masks, likely related to mask blank seating. On sky alignment went well with targets well centered in slits.

Plan to have first draft done in 2 weeks, full deployment for 23B.

2:20

Slitmask deadline scheduling

Carlos

DEIMOS and LRIS quite a few late masks submitted. We need to handle this in a way that we can get the masks milled on time. If we can change the deadline to 5 weeks before the deadline.

2:25

KCRM

Rosalie

Shipping Feb 8th, going up mountain Feb 26th

2:30

K1 Shutter

Carolyn

K1 Bottom Shutter install week of 13th