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
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for Toyokawa data
IDL> file='/archive/pub/norp/xdr/1992/04/tykw920402.xdr'
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IDL> tykw_rd_rdt,file,rdata
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For obtaining observing time (JST) for Nobeyama data
IDL> timej=norp_rdt2timej(rdata,date)
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