While many of us are imaging and taking photometry measurements of SN 2023ixf in M101, I would like to point out other research that could be of interest to observers. SETI researchers are observing stars near SN 2023ixf in search of a secondary signal based on the concept of SETI Ellipsoid where if there is a chance of an extraterrestrial civilization observing SN 2023ixf as a beacon then sending a signal in response. This signal may be detected several years after the SN beacon based on elliptical geometry. Some interesting references on the subject:
While an extreme longshot, maybe do not delete your M101 supernova images after making the photometry measurements in case there is a secondary optical signal near SN 2023ixf sometime in the future. Also continuing periodic observations of M101 and SN 2023ixf years after the event may be of value. Photometry tools continue to improve like that used in TESS exoplanet detection and maybe small optical changes in an image may be more detectable with future tools including machine learning techniques in reprocessing old images.
-Paul
BPAD
Paul wrote: "...maybe do not delete your M101 supernova images after making the photometry measurements..." Given the low cost of disc (or other) storage now, I hope folks are not in the habit of deleting images. As Paul implies, avoid the illusion that whatever processing and measurement you have done is the best or only thing that can be done with them in the future.
\Brian