|
|
|
|
|||||
|
||||||
Subject: Re: Bowditch Long Term Almanac Tables
From: Dan Allen (danallen46@XXX.XXX)
Date: Wed Oct 23 2002 - 20:18:38 EDT
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
|