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.

Materials and Videos

Link to presentation: Introduction to WebbPSF

Link to notebook in PDF: WebbPSF

Github for the notebook: WebbPSF 

Links to videos:

1. Introduction to WebbPSF
2. Using Wavefronts Measured on Orbit
3. Delta wfe around Time
4. Trending Wavefront Changes over Time
5. JWST PSF Subtraction Using Inflight Simulations
6. PSF Properties and Differences