Solar eruptive signatures associated with the 2021 June 9 SEP event. Panels (a) and (b) show SDO/AIA 304 Å images at 11:59:06 and 12:00:18 UT, respectively, obtained from the SDO AIA/Helioseismic and Magnetic Imager Browse Data service (https://sdo.gsfc.nasa.gov/data/aiahmi/index.php). Panels (c) and (d) show SOHO/LASCO/C2 coronagraph images at 12:36 and 12:48 UT, respectively, obtained from the SOHO Movie Theater (https://soho.nascom.nasa.gov/data/Theater/). Panel (e) shows the PSP/FIELDS/RFS dynamic spectrum over 00:00–24:00 UT, in which a Type III radio burst was detected at approximately 12:00 UT, obtained from the PSP Science Gateway Summary Image Plotter (https://psp-gateway.jhuapl.edu/website/Tools/SummaryImagePlotter/).