PROCEDURE: thm_load_peir PURPOSE: Decommutates the raw THEMIS ion esa reduced data packets, (peir - apid 455), and puts data structure in a common for access by get_th*_peir.pro and generates tplot energy spectrogram INPUT: KEYWORDS: file: string, strarr the complete path and filename to the raw pkt files if not set, uses timerange to select files sc: string themis spacecraft - "a", "b", "c", "d", "e" if not set defaults to "a" themishome: string path to data dir, where data dir contains the th* dir, where *=a,b,c,d,e gap_time real data gaps greater than gap_time have a NAN replacing a data point in tplot structures suffix string "suffix" is appended to the default tplot names CREATED BY: J. McFadden 07/03/18 VERSION: 1 LAST MODIFICATION: 08/05/14 MOD HISTORY: suffix keyword added 08/05/14 NOTES: