Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    or...
       
    Reply
    Re: Assumed positions, WAS: IN HONOR OF JEREMY...
    From: Lu Abel
    Date: 2009 Sep 25, 10:08 -0700

    Is Gery's paper (or a similar one on direct calculation of L/Lo from a
    pair of observations) available on-line?
    
    One would guess that with two observations (and, of course, all the time
    and NA data) one could calculate L/Lo directly, but I've never seen it
    described.
    
    Thanks
    
    Lu
    
    George Huxtable wrote:
    > I could have added some more recent papers on calculating 2-body fixes.
    >
    > Stanley W Gery, "The direct fix of latitude and longitude from two observed
    > altitudes", Navigation, 44 (1) 1997.
    >
    > George H Kaplan "Determining the position and motion of a vessel from
    > celestial observations", Navigation, 42 (4) 1995.
    >
    > I've only listed, here, pages from the American publication "Navigation",
    > and haven't investigated the British "Journal of Navigation", which I expect
    > would have also carried articles on that topic.
    >
    > George.
    > contact George Huxtable, at  george{at}hux.me.uk
    > or at +44 1865 820222 (from UK, 01865 820222)
    > or at 1 Sandy Lane, Southmoor, Abingdon, Oxon OX13 5HX, UK.
    >
    >
    > >
    >
    
    --~--~---------~--~----~------------~-------~--~----~
    NavList message boards: www.fer3.com/arc
    Or post by email to: NavList@fer3.com
    To unsubscribe, email NavList-unsubscribe@fer3.com
    -~----------~----~----~----~------~----~------~--~---
    
    

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.
    Email:

    Email Settings

    Posting Code:

    Custom Index

    Subject:
    Author:
    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site