functions in bear.i -

             bear_faxis  
 
    Returns frequency axis for a BEAR data set in cm-1.  
    INPUTS: fh: FITS file handle of a BEAR cube or spectrum as used in  
    fits.i or header array as used in newfits.i.  
    KEYWORDS:  
     P,CEN_FREQ,FILTERLB,FILTERUB,FSR_OFF,FSR_LEN,NAXIS3,SPAXIS  
    As keywords  override FITS cards,  it is not  necessary to provide fh  if a  
    sufficient number of keywords are given.  
    Necessary information is:  
     P ;  
     CEN_FREQ: central frequency,  or indeed any frequency in  the FSR, defaults  
      to (FILTERLB+FILTERUB)/2;  
     NAXIS3: number of points in  the spectral dimension, which is determined by  
      SPAXIS;  
     SPAXIS: index  of the  spectral dimension, defaults  to the last  one (FITS  
      card "NAXIS");  
     FSR_OFF: offset between FSR ad cube, defaults to 0;  
     FSR_LEN: number of planes in the FSR, defaults to NAXIS3.  
    FITS cards used:  
     P,FILTERLB,FILTERUB,FSR_OFF,FSR_LEN,NAXISn,NAXIS  

             is_bear(fh)  
 
    Tells if FITS header FH belongs to a BEAR data set, using FITS  
    card "INSTRUME".