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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: How to round?
From: Roger W. Sinnott
Date: 2019 Jun 12, 11:39 -0700
From: Roger W. Sinnott
Date: 2019 Jun 12, 11:39 -0700
Tony,
A good rule for rounding DDD° MM' 03" and other odd multiples of 03" is to choose whichever tenth of a minute is even.
Thus,
21 47 03 (or 21 47.05) becomes 21 47.0
21 47 09 (or 21 47.15) becomes 21 47.2
21 47 15 (or 21 47.25) becomes 21 47.2
21 47 21 (or 21 47.35) becomes 21 47.4
etc., etc.
Roger
