Date
Attendees
- Brian Brooks
- Knicole Colon
- Unknown User (ddeal)
- Rosa Diaz
- Nestor Espinoza
- Elena Manjavacas
- Michael Regan
- Everett Schlawin
- Leonardo Ubeda
Apologies
Agenda
- News & Announcements
- TSO upcoming observations (Nikolay Nikolov)
- Extracting TSO guide-star data with spelunker (Unknown User (ddeal) Nestor Espinoza)
- Strategy for FY2024 TSO WG planning (Nestor Espinoza Nikolay Nikolov)
- Instrument Roundtable Check-in (all)
Discussion items
Time | Item | Who | Notes |
---|---|---|---|
5min | News & Announcements |
| |
10min | TSO upcoming observations |
| |
20min | Extracting TSO guide-star data with spelunker | Unknown User (ddeal) presents a new Python tool called SPELUNKER, which downloads and analyzes FGS data for a given JWST TSO. Capabilities: The tool aligns all the images for a star, performs 2D Gaussian fits to measure PSF properties (including x,y, FWHM and orientation), visualizes the properties as a function of time (producing both plots and animations) and performs periodogram analysis. The pipeline conveniently obtains mnemonics that detail HGA start/end moves and indicates those in the plots. Filter moves , currents and other physical properties are obtained from mnemonics to enable correlation analysis with light curves. The pipeline has the capability to look at multiple guide stars. Installation: The pipeline is easy to instal with the pip command and requires simply the PID of a given program to run. Future plans: Unknown User (ddeal) plans to explore the FGS data for stellar activity and create images from stacking and aligning images from the FGS data. Everett Schlawin suggests one check to be included would be to look at the mnemonics for the exposure start and end to see how they align with the corresponding times from the header key words. Nestor Espinoza demonstrated the highly-complementary value of the FGS data to a relevant TSO. He shows plot of the FGS properties as a function of time compared to properties obtained from a TSO spectra. The FGS data shows much clearer tilt events and specifically changes in the OTE that pressed a tilt event. Nestor Espinoza is preparing a Jupyter Notebook that will be made available for the community. | |