In order to read raw data directly, for Nobeyama data
IDL> file='/archive/pub/norp/raw/1991/01/pl910125' CR
IDL> norp_rd_rdt,file,rdata,date,version CR
for Toyokawa data
IDL> file='/archive/pub/norp/xdr/1992/04/tykw920402.xdr' CR
IDL> tykw_rd_rdt,file,rdata CR
For obtaining observing time (JST) for Nobeyama data
IDL> timej=norp_rdt2timej(rdata,date) CR