Prime Keys are:
	Site
	MonitorID
	UTC_StartTime
	StationID
DB Index Keys are:
	Site
	MonitorID
	UTC_StartTime
	Filename
	StationID
All Keywords for series sid_awe.sidarchive:
	MonitorID 	(string)	Unique SID Monitor ID
	Site      	(string)	SID site ID, e.g. WSO
	UTC_StartTime	(time)	Start time of SID archive file
	StationID 	(string)	Broadcasting Station ID,e.g. NLK
	Filename  	(string)	Original file name, e.g. WSO/20100302_000000_NLK_S-0012.csv
Segments for series sid_awe.sidarchive:
	file_seg  	    bin	generic	contents of the SID unit data file