Page History

• Currently, problem with TSO3 white-light curve for NIRCam and NIRISS. Brian Hilbert asked Nikolay Nikolov to work on this, in order to have a quick-look at the data from the level 2 or 3 products from the JWST pipeline. He did an independant analysis of the data in order to extract the spectra, and try to obtain the expected signal.  
  
  When Nikolay looked at the level 3a data, the spectra (and white-light lightcurve) didn't make much sense. Lots of jumps, no clear transit in the recovered data. It is unclear, however, if this happened because of the flux calibration or not. When he started from the level 2 data, the uncalibrated 1D spectra looks realy really good, as well as the white-light curve. Ideal would be to be able to turn off the flux calibration in order to investigate if that's the issue with the calibration pipeline, but that's not straighforward to do. Tony Keyes suggests that maybe one could trick the flux calibration by passing a unitary configuration file. In general, Sarah Kendrew mentions that changing the defaults in the configuration files might help knowing what is going on.
  
  Nikolay will be looking at this in more detail in order to nail down the problem that Brian Hilbert was seeing.
  
  

•  

  Status
  colour Blue title TO DO

    Nestor Espinoza and Sarah Kendrew will suggest Nikolay Nikolov presents in the next CalWeb WG meeting so he can update the team on what he did, and how TSO-related data reduction works in practice in order to obtain back the ingested signal in the simulations.

• Sarah Kendrew mentions current discussions going on in the MIRI team on how to add MIRI TSO resources for pipeline calibration & testing.

Nestor Espinoza

• Nestor Espinoza to start working on testing and validating new spectral trace extraction developed by Joe F. and Kevin FV.

Brian Brooks Nikolay Nikolov

Sarah Kendrew

Deliverable: recommendations on next steps for testing. Memo by August 28, 2020 (priority 1). Task for everyone: think on exactly what instrument/mode would benefit the most from the work of this consulting expert. Provide feedback in the next week to Nestor Espinoza.

Deliverable: set of recommendations on the needed accuracy of the time stamps for, e.g., atmospheric characterization and eclipse mapping of exoplanets (related to TSO WG task 4.3c; priority 2). Memo by August 28, 2020. Will work together on this with Nikolay Nikolov and Brian Brooks. Nestor Espinoza wants to be in the loop as well.

Contribution to the TSO WG discussion on requirements and specifications for the development of the tool for all JWST instrument modes (related to TSO WG task 4.6a; priority 3). Nikolay Nikolov will lead this discussion. Nestor Espinoza will be included as well.

•  

  Status
  colour Blue title TO DO

   Nestor Espinoza will send a meeting invite during next week to start this work with the consultant.

Contribution to the discussion of synergies between the two WGs. If anyone wants to be included on this discussion, reach out to Nestor Espinoza.

Sarah Kendrew

• Sarah Kendrew asked the DMS WG to provide a dashboard of TSO-only DMS WG tickets, which would simplify our work in looking at them.
• There are some tickets which are unprioritized. It would be desirable for the TSO WG to provide some priorities for them; for the next biweekly, task for us is to look at those and come up with prioritizations. Nestor Espinoza recommends each branch liaison looks at the tickets that touch on their instruments and propose a priority.
• Nestor Espinoza also proposes that we go over the tickets with the highest priorities in the next biweekly. 

• Tony Keyes asked if the NIRCam team could share the target they will be doing TSO on during comissioniong. Information on this is here: Calibration Target.