Making an Ascii table from a FITS file header
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I'd like to learn how to grab information from a FITS file header and transfer that information to an ascii table. For example, this is how I would obtain the info.:
    
        python
        import pyfits
        a = pyfits.open('data.fits')
        header = a[0].header # Which should return something like this (It is  BinHDUlist)
        SIMPLE  =                T / conforms to FITS standards                    
                                   / institution responsible for creating this file 
    TELESCOP= 'Kepler  '           / telescope                                      
    INSTRUME= 'Kepler Photometer'  / detector type                                  
    OBJECT  = 'KIC 8631743'        / string version of KEPLERID                     
    RA_OBJ  =           294.466516 / [deg] right ascension                          
    DEC_OBJ =            44.751131 / [deg] declination                              


How could I create an ASCII table that contains RA_OBJ and DEC_OBJ ? 