• Notes
    • Agnès Ferté 
      • Working on the zero back voltage runs to measure ring centers.
        • Center of the raft as the first value.
        • Isn't quite right, so need to sort through better fit method.
      • Talking with Yousuke on this data.
      • Shear-fest and DESC meeting happening this week and next.
    • Christopher Waters 
      • Fringing.
        • Science is wrong.
        • Middleware works, need testing.
        • This will be a new dataset type, which will likely be the only one passed to the new ISR task.
      • CR.
        • Gain scaling.  Is this undone by flat fielding on regular science images?
        • Background issues.
      • Bar structure on flats.
        • Matching flats to science images to have the same impact.
    • Eli Rykoff 
      • Will not be able to join next Monday, due to DESC meeting.
      • Photodiode extraction in PTC step instead of linearity.
      • IR2 hose issue flooded the lab.
      • LATISS transmission curve data is updated, and needs to be pushed.
        • Did the previous version get pushed to the summit?  I don't think so, so this will be superceded by this version.
        • Need to be done for SDF repos
      • Comparison of QE between ITL and E2V to reference stars.
      • Discussion with Parker.
        • Commissioning timeline.
          • The calibration screen installation is part of the dome contract, and that needs to be done before anything else can happen.
          • CBP and laser installation depends on that.
          • Camera installation followed by reflector to bounce the laser onto the screen.
          • LED flats – does this need any extra software?
          • Once the telescope is aligned, we can do dense starfield to generate CBP Hedgehog.
        • Software development needed:
          • Fringing code.
          • obs_fiberspectrograph and photodiode to allow monochromatic flats to be properly calibrated.
          • dust flat and dust modelling
          • Define background and reference flux flat.
            • Can we get the lateral e-field templates for LATISS.
            • Dense star field data is needed for this as well.  Ticket for this exists ~DM-10000
          • Modtran atmosphere parameters from LATISS.
          • Lab data fits:
            • How to fit e-field templates to the flats?
            • Removal of that signal from the flats.
            • CCOB does not have monochrometer data, so we cannot generate a better dense QE measurement for each detector until CBP.
          • Saturation value handling.  Are we correctly accounting for the overscan level or are we flagging things as saturated at a too-faint level?
          • Separation of background flats and reference flux flats.
          • Add ci_latiss that checks that the new ISR is running consistently.
          • CBP code requires CBP data.
          • Technote upcoming to fully define types of flats/other datasets.
        • Publish slides from Tucson discussions.  DM-39997 will have the details.