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Re: Bowditch Long Term Almanac Tables
From: Dan Allen
Date: 2002 Oct 23, 17:18 -0700
From: Dan Allen
Date: 2002 Oct 23, 17:18 -0700
On Wednesday, October 23, 2002, at 03:53 PM, Gordon Talge wrote: > A few years ago, using DE200/LE200 and Chebyshev Polynomial > approximations I was able to duplicate the polynomials in the now > defunct "Almanac for Computers" for the Sun, Moon, and Planets. This is closer to what I was thinking about. I downloaded most of DE405 today (45 MB worth) but the Fortran 77 compiler I found does not work as it should on Mac OS X. However I am looking to see how good of a table version could be created and still have reasonable accuracy. The tables may be generated by polynomial series, but I'd like to do more analysis about errors to see if a long-term almanac could be created in say, five pages or so. Dan
