Extracting PSF for a single visits image at particular coordinates

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#1

I am trying to inspect how the PSF changes (if it does) at particular coordinates.
Therefore, I am trying to extract PSF information (PSF size and FWHM) for each single-visit image at those coordinates (from the LSST DP1 data).
If I understand correctly, Tutorial 205.1 can provide the PSF for a single-visit image, but Iā€™m not sure how to modify the code to get PSFs for all existing single visits.

Any help, hint, or code example would be highly appreciated! :slight_smile:

#2

Hi @uros2 , Section 3.3 of each notebook tutorial in the 301 series demonstrates how to retrieve the PSF FWHM for all visit images across the seven DP1 fields. If this addresses your requirements, please mark this response as the solution. Otherwise, please provide more details so I can assist you further.

#3

Perfect,
Thanks this is exactly what I need :slight_smile:

Uros

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