Page History

Nestor Espinoza 

• Brian Brooks   outlines that the STScI D2P project has a draft page, which should be updated with the identified by Everett Schlawin  mismatch between header keywords and INT_TIMES. The page needs to be updated due this Friday
• Nestor Espinoza mentions an upcoming gather town meeting of the Strategic Exoplanet Initiative on July 31st at 9am ET. The meeting will be centered on early career researchers (up to 10 years after PhD).

Nikolay Nikolov 

• Nikolay Nikolov presented a summary of all archived observations in the past two weeks: 18 TSOs using BOTS (9), MIRI (5), SOSS (3), NIRCam (1). He mentions that TSOs with successful target acquisition (TA) and issues of the actual science exposure can still have status "Archived". Nikolay Nikolov presents a list of upcoming observations of which 2 have been scheduled and 10 with a status "Scheduling". 
• Elena Manjavacas and Michael Regan comment that there are reprocessing issues that delay recently obtained data to become available on the MAST archive. 

Unknown User (ddeal) Nestor Espinoza 

Unknown User (ddeal) presents a new Python tool called SPELUNKER, which downloads and analyzes FGS data for a given JWST TSO.  The  

Capabilities: The tool aligns all the images for a star, performs 2D Gaussian fits to measure PSF properties (including x,y, FWHM and orientation) and , 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 indicate 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.