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5 mins

1. News & announcements


Launch delay to 24 Dec. 

Brian Brooks new Pandeia alpha release. helping people on other development teams get used to the software - has a lot of API changes. could be useful for anyone working on PandExo. 

25min2. Current task updates

  • JWebbinar is all done! The sessions were quite easy, preparations were hard work. now have good notebooks in place that people can use, they are available in STScI repositories. from TSO WG Everett and Knicole were present - feedback welcome.
    • long term support for these notebook? no provision for maintenance right now
  • Last day to comment on teh high-efficiency modes report. Please send feedback or comments asap. 
  • 1/f noise update from Nestor. 
    • ES: why do the platforms never meet? We're not sure. 
    • DK: why is the "before" plateau lower than the "after"? Not sure. And why are the spikes not present? Also not sure!
  • During NIRISS commissioning rehearsals did some experiments for 1/f noise. Loic generated simulated observations with & w/o 1/f noise (not with MIRAGE); ran the pipeline end to end and looked at the difference (see slides for plots). 
    • MR: have to be careful about how noise is put into the simulations. Simulators are not fully validated, they are not "truth". So we need to keep that in mind when using simulated data to investigate this issue. 
  • Fits for 1/f noise look good for full frames but subarrays still have peaks that we don't understand. NE went back to darks data to try and understand where this power is coming from. 
    • exploring this further
    • MR will ask Eddie to look at these data
25min3. Pipeline enhancements

Nestor Espinoza 
  • NE has created a page with proposed enhancements. Want to collect the proposals there in a table before submitting actual JIRA tickets.
  • Outlier detection:
    • MR this algorithm needs to be tested on data that has run through the jump step (even for the NIRCam data); there have been enhancements to the jump step. MR proposed additional change to jump step that is specific for TSO data. MR has proposed but not yet demonstrated with data. (uses sigma clipping rather than work with reference files).
  • Additional items to add to this table:
    • pre-amp reset corrections (ref pixels for subarrays; "pseudo-reference pixels")
    • IRS2 in subarray for NIRCam
    • background subtraction for slitless LRS → action on SK
  • Action on all to add further ideas for enhancements to the table. will be discussed in the Jan CalWG meeting.
2 mins4. Closing RemarksNestor EspinozaNext meeting: 29 Dec