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Re: Position from crossing two circles : was [NAV-L] Reality check
From: Herbert Prinz
Date: 2006 Jun 8, 05:25 -0400
From: Herbert Prinz
Date: 2006 Jun 8, 05:25 -0400
Hello Andres, There is a bracket missing. It should be: S ( [Sin Ho ? [sin Dec sin Lat + cos Dec cos Lat cos(GHA+Lon) ] ]^2 ) Herbert Prinz Andres Ruiz wrote: > *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 ) >