AT_SKAG: - UNKNOWN - UNKNOWN
http://anf.ucsd.edu/api/yukon/rrd/plot/?sta=SKAG&chan=m4&net=AT&tw=d
http://anf.ucsd.edu/api/yukon/rrd/plot/?sta=SKAG&chan=m4&net=AT&tw=w
http://anf.ucsd.edu/api/yukon/rrd/plot/?sta=SKAG&chan=m4&net=AT&tw=m
http://anf.ucsd.edu/api/yukon/rrd/plot/?sta=SKAG&chan=m4&net=AT&tw=y
http://anf.ucsd.edu/api/yukon/rrd/plot/?sta=SKAG&chan=m4&net=AT&tw=l