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    Re: Variation of compass
    From: Cliff Sojourner
    Date: 2002 Oct 2, 13:54 -0700

    Rodney,
    
    the GCC package includes FORTRAN.  I used it to compile NOVAS and SOFA,
    worked perfectly.  (my NOVAS code, on the other hand ...)
    
    
    back to Dave's original question,
    
    > What sources exist to determine compass variation for your position at
    sea?
    
    what counts as fair for sources?  variation is printed on every chart,
    right?  world maps are available (in APN for example), GPS has it built in.
    given most variations are just a few arc minutes you would need a flat calm
    but sights on polaris might do it, good luck though.
    --
    these are the good old days
    Cliff Sojourner          cls{at}employees.org
    
    ----- Original Message -----
    From: "Rodney Myrvaagnes" 
    To: 
    Sent: Wednesday, October 02, 2002 14:28
    Subject: Re: Variation of compass
    
    
    > I love it. Is there, by chance, a FORTRAN compiler to be found on the
    > web for PC or Linux?
    >
    >
    > On Wed, 2 Oct 2002 15:58:45 -0400, Smith_Peter{at}EMC.COM wrote:
    >
    > >
    > >The DOD World Magnetic Charts page at
    http://geomag.usgs.gov/chartsdo.html
    > >has downloadable charts and some code (FORTRAN, to keep us dinosaurs
    happy)
    > >to run your own estimates for any given location.
    
    
    

       
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