SEM 15-sec DATA ZIP FILES 
Data Combined into ZIP files: Starting Date Nov 16, 2017
The name of each ZIP file contains the YEAR for which the files are combined
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Each separate unzipped file name consists the YY_MM_DD_v3.15, for example a file for 9 Nov 2017 is saved as 17_11_09_v3.15
Each separate unzipped file contains a header, which explains the columns within the file.
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Space Sciences Center, SHS 362 MC-1341University of Southern CaliforniaLos Angeles, CA 90089 -----------------------------------------------
Phone:   (213) 740-6339 E-mail:  spacectr@usc.edu
Contact: Dr. Leonid Didkovsky, leonid 'at' usc.edu Website: https://dornsifecms.usc.edu/space-sciences-center/download-sem-data/