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: Systematic error and its resolution
    From: Peter Fogg
    Date: 2007 Apr 07, 07:07 -0000

    
    
    Frank (also) wrote:
    >  I think it's probably true (and probably obvious)
    > that  you would get even better results with more sights
    
    Yes. A graphic method of plotting tends to become horribly complicated
    with five or more position lines, but a least squares fix, analysis
    for systematic error, etc can all be carried out.
    
    I tend to think of four position lines as being the ideal number, but
    the analysis of any number of LOPs is a cinch for modern supercharged
    methods (eg, use of computing devices). In practice my nav calculator
    does this very well, encouraging the use of multiple bodies - it has
    no trouble at all in deriving a fix based on them all, and rendering
    the error of each (distance of each body's LOP from fix) as a post fix
    check.
    
    
    --~--~---------~--~----~------------~-------~--~----~
    To post to this group, send email to NavList@fer3.com
    To unsubscribe, send email to 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