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    From: Andrés Ruiz
    Date: 2007 Oct 25, 07:56 +0200

    Dear Frank [FER],

    I have detected that if the format of the message is [Text without format] enter immediately in NavList, but if [HTML] is used there is a delay of five or six hours.

    Do you know why?

     

    Andrés

     

    -----Mensaje original-----
    De: Andres Ruiz
    Enviado el: jueves, 25 de octubre de 2007 7:42
    Para: 'NavList@fer3.com'
    Asunto: Re: Marq St. Hilaire - Altitude intercept method

     

    Yes, thanks.

    I copy & paste it from my article " Vector equation of the circle of equal altitude " without checking this.

     

    The equation is:

     

    sin H  = cos B cos Dec cos ( GHA-L ) + sin B sin Dec

    -90 <= Dec <= +90º

    0 <= GHA <= 360º (W to E)

    0 <= H <= 90º

    -90 <= B <= +90º

    0 <= L <= 360º (W to E)

    and

     

    LHA = GHA+L

    sin H  = cos B cos Dec cos ( GHA+L ) + sin B sin Dec

    -180(W) <= L <= +180º(E)

     

     

    -----Mensaje original-----

    De: NavList@fer3.com [mailto:NavList@fer3.com] En nombre de dw

    Enviado el: jueves, 25 de octubre de 2007 1:10

    Para: NavList

    Asunto: [NavList 3551] Re: Marq St. Hilaire - Altitude intercept method

     

     

    Perhaps the equation you cite:

     

    sin H  = cos B cos Dec cos ( GHA-L ) + sin B sin Dec

     

    Should be GHA+L, using the conventions you give.

     

     

     

     


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