In this JWebbinar, we will cover the basics about simulating Webb’s PSF by using the inflight measurements of the optical performance of the telescope via Optical Path Difference files. Then we will introduce different tools and functions that allow the user to setup their simulations directly from the observations, to understand how the optical performance of the telescope might affect PSFs in science data and, finally, to use WebbPSF simulations to perform basic operations in science observations like PSF subtraction.

Registration closes on July 12^th.