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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Position from crossing two circles : was [NAV-L] Reality check
From: Frank Reed CT
Date: 2006 Jun 8, 05:49 EDT
From: Frank Reed CT
Date: 2006 Jun 8, 05:49 EDT
Herbert Prinz quoted Andres Ruiz: > *2. Position from n circles of equal altitude* > > Here the problem is there are a lot of crossings between the circles. > Metcalf & Metcalf, (On the overdetermined celestial fix - Refer to the > Bibliography section at the link below), developed a method based on > Lagrange Least-Squares minimization of the equation: > > S ( Sin Ho – [ sin Dec sin Lat + cos Dec cos Lat cos(GHA+Lon) ]^2 ) > I didn't receive this message and there's no evidence of it in the irbs archive that I can find --possibly it was a private message-- but I would be interested in receiving a copy. Could someone forward a copy to me? Thanks. -FER 42.0N 87.7W, or 41.4N 72.1W. www.HistoricalAtlas.com/lunars
