General
    The NRH Group provides daily observation of whole Sun flux intensity at10 frequencies from150MHz to 450 MHz, during 10 hours of each day (from 8 UT TO 16 UT). The data can be loaded from the Flux ftp sitef
    Filename
        nrot_YYYYMMDD_HHMMSS.fts
                YYYYMMDD and HHMMSS date and time of observation

File Format
    NRH global flux data are stored in FITS files using binary EXTENSION.

    HEADER 0
        General information about the observation

    EXTENSION 1
        HEADER 1
            format description
        DATA
            Column 1    Time    in milliseconds of the day
            Column 2    flux        2 dimensions array with 10 frequencies (1st dimension frequency, 2nd time)
                                            the frequency range in the array is given by the keyword FREQn in Header 0

            The time resolution is given in the Header by the keyword TIMESTEP (usually 10 ms)

Software
        Software to read and plot flux is available in the NRH tree of Solar Soft
        This software is run by the NRHR command in the SSWIDL environnement
 

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