NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re Lars Tornqvist nav program
From: Peter Fogg
Date: 2002 Feb 6, 16:52 +1100
From: Peter Fogg
Date: 2002 Feb 6, 16:52 +1100
Looks very interesting, Lars, and must represent a huge amount of work. a few queries: Will it run on Macintosh computers? Is it independant of the correct GMT being displayed on the computer's clock? Mine is decidedly inaccurate, although it is regularly updated to this local time. Can the relevant local time only, with the appropriate correction, be used? I enjoy solving (or not) the navigational problems such as the 'Silicon Sea' series on the Nav. list. These can involve data from all over the world and any time zone, and any year. My own approach is to always start with local time and convert to GMT when necessary. Could your program cope with these parameters? For example, I note that the almanac is good for the next 10 years but how far back does it go? Your example shows an assumed postion in whole degrees. How would it cope with a DR position that may involve one tenths of a minute of long. or lat. ? (Personally I think that a DR to the nearest minute is all that is needed or practical but the problem being worked on may use greater precision)
