TA_L18K: - UNKNOWN - UNKNOWN
http://anf.ucsd.edu/api/ta_prelim/rrd/plot/?sta=L18K&chan=clt&net=TA&tw=d
http://anf.ucsd.edu/api/ta_prelim/rrd/plot/?sta=L18K&chan=clt&net=TA&tw=w
http://anf.ucsd.edu/api/ta_prelim/rrd/plot/?sta=L18K&chan=clt&net=TA&tw=m
http://anf.ucsd.edu/api/ta_prelim/rrd/plot/?sta=L18K&chan=clt&net=TA&tw=y
http://anf.ucsd.edu/api/ta_prelim/rrd/plot/?sta=L18K&chan=clt&net=TA&tw=l