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    Re: Averaging lunars: was Lunars with SNO-T
    From: Herbert Prinz
    Date: 2004 Nov 1, 05:41 -0500

    Alexandre Eremenko wrote:
    
    > He (Herbert Prinz), in the same message, also gave references
    > to the literature where this question of Averaging and
    > non-linearity was thoroughly investigated.
    > It is true, I could never find his reply on my message asking
    > for PRECISE references, but I think it is only because of my poor
    > copmmand of the search engine on this list.
    > So, if this question was carefully investigated, and
    > the results were published, why don't wee
    > just look at these papers instead of inventing a bicycle again?
    
    Alexandre,
    
    I apologize to you and everybody else on the list whose specific
    questions I have not answered in the past month. I am just as
    overburdened by digesting 25 messages a day as our good list server
    seems to be.
    
    There seems to be a misunderstanding, because I never gave or even
    hinted at a reference to literature where the problem of averaging
    observed altitudes has been investigated mathematically. In fact, I do
    not know of any such literature. Your original question was about
    averaging altitudes. What I said was just based on looking at the cosine
    formula.
    
    The only vague reference to literature I made, was when I talked about
    "error elimination", of which I expressly said it DIDN'T apply to
    navigation. Here I was thinking of Chauvenet's appendix, where he talks
    about Pierce's criterion for eliminating outliers and such, and some
    postings on this list from a while ago regarding systematic error.
    
    If I have overlooked or forgotten something else I said and that needs
    clarification, I am sorry and please do ask again.
    
    Herbert Prinz
    
    
    

       
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