2024-10-02 TSO CT Meeting notes

10min

• 4 successful observations, one failed for TOI-455 (Batalha)
  • Lost lock of guide star (previously failed from TA failure before this!)
    
    • TA performed with NIRCam imaging
  • Repeat granted with updated NIRCam imaging
  • Scheduled now for December
• Considering blind TA pointing
  • Néstor and Jeff looked at this, most good within 1", but ~10 outside that
    • 7 of these are bad coordinates
    • 1 binary from RUWE that was misestimated
    • 1 out 70 didn't have obvious issue
    • General conclusion is that blind pointing could be workable, but needs investigation by NIRSpec team
    • Could be weighed against other risks. 
    • Tony Sohn has a lot of scripts in place to take a look at blind pointing accuracy, already tested for NIRCam and NIRISS.
• Three MIRI observations this week, and three other targets later in the month. 

• Coordination teams used to be working groups
  • Naming, structure, and logging work has changed over the years
  • Now there is more flexibility → Deciding to move tasks to Jira
  • Important: TSO team has no control over FTE's, we can only recommend to the respective INS team
  • So, we "make the menu" and then the managers pick. 
  • Also bound the projects by some specific deliverables and actions
• Starting with NIRSpec tasks
  • Logged in a Kanban board
  • Not all tasks are for FY2025, but recording them anyway
  • Focusing not just on the tasks, but a work plan and FTE breakdown
• Discussion of tasks
  • https://jira.stsci.edu/secure/RapidBoard.jspa?rapidView=941&projectKey=JWSTTSO&view=detail&selectedIssue=JWSTTSO-1#
  • 1) Time dependent slopes
    • How does it vary, is it correlated with certain parameters? 
  • 2) Time correlated systematics
    • Leonardo: How does it overlap with existing slope work?
      • Slope is different to the high frequency noise, will be a distinct investigation
    • Loïc: For SOSS, PCA on 2D image series really highlight this beating noise. 
      • ~3rd component is this beating from the IEC
      • We often detrend using these eigenvalues. 
  • 3) NIRSpec backgrounds
    • How significant are they, how do they vary? 
  • 4) Charge Migration
  • 5) PandExo Accuracy
    • How true to life is it? Seems optimistic from some early community analyses. 
    • May be related to higher metallicities and limb darkening treatment
    • Loïc: Maybe point to point is okay but the extraction isn't?
      • Néstor: This is likely true, when comparing ETC for individual light curve point it's pretty good. 
  • 6) Offsets between NRS1/2 detectors
    
    • Is it dependent on transit depth? How significant are they? 
  • 7) 1/f Noise
    • How best to correct for it? Test different algorithms and find out
    • Loïc: Considering simulations for this?
  • 8) Time-dependent slopes but as a function of wavelenghth 
    • Similar to 2), follow-up
  • 9) MULTISTRIPE for NIRSpec
    • Longer timescale?
  • Leonardo: will they all run in parallel?
    
    • No, we will propose ranked list - not all of these will be done this year. 

Brian:

• Micro-code, John has been reviewing feedback. Pipeline for MULTISTRIPE and DHS will be a little more involved, a report will be coming out soon. 

Next meeting cancelled because of JWST deadline