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: Read the Data : Analysis : Raw Data

Read the Data -- Nobeyama Radio Polarimeters

There are two kinds of formats for Nobeyama Radio Polarimeters (NoRP). One is before unifing with Toyokawa Radio Polarimeters and the other is after that. For older format, the files include only 1, 2, 3.75 9.4 GHz data.

In order to read the data into IDL session, give the date (JST) as follows:
IDL> day='1992-4-23'
IDL> norp_rd_dat,day,mvd,tim,fi,fv,freq $<$CR$>$
or give the file name as follows:
IDL> file='pl920423'
IDL> norp_rd_dat,file,mvd,tim,fi,fv,freq $<$CR$>$
freq is observing frequencies in units of GHz (in this example, 1, 2, 3.75, 9.4, 17, 3, 80 GHz), tim is observing time, fi, fv are I (R+L), V (R-L) comonents of flux density, respectively. mvd is an array including the values of unity (1) for valid data or zero (0) for non-valid data.
In order to read the data in specified duration:
IDL> timerange=['1992-4-23 2:00','1992-4-23 4:00'] $<$CR$>$
IDL> norp_rd_dat,day,mvd,tim,fi,fv,freq,timerange=timerange $<$CR$>$
In order to read the data of specified frequency, e.g. for 17 GHz,
IDL> rdfreq=[0,0,0,0,1,0,0] $<$CR$>$
IDL> norp_rd_dat,day,mvd,tim,fi,fv,rdfreq=rdfreq $<$CR$>$
For 1GHz and 9.4GHz,
IDL> rdfreq=[1,0,0,1,0,0,0] $<$CR$>$
IDL> norp_rd_dat,day,mvd,tim,fi,fv,rdfreq=rdfreq $<$CR$>$
Each element in the array rdfreq corresponds to the data of one frequency among 1, 2, 3.75, 9.4, 17, 35 and 80 GHz.


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: Read the Data : Analysis : Raw Data
Takaaki YOKOYAMA 平成12年10月25日