tokens: The SDO/AIA images are available courtesy of NASA/SDO and the AIA science teams. This work made extensive use of the AIA archive at MEDOC, http://medoc-sdo.ias.u-psud.fr .
ner_tags: O B-Observatory O O O O O B-Organization O O B-Telescope O O O O O O O O O B-Archive I-Archive I-Archive I-Archive B-URL O