Resource at http://vmo.igpp.ucla.edu/
http://vmo.igpp.ucla.edu/data1/McPherron/NegativeBayList/SMLonsets.txt

Resource at https://supermag.jhuapl.edu/
https://supermag.jhuapl.edu/indices/?layers=SME.UL

Resource at https://supermag.jhuapl.edu/
https://supermag.jhuapl.edu/info/?page=acknowledgement