Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Position-Finding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    or...
    Re: Index Correction
    From: Alexandre Eremenko
    Date: 2017 Apr 10, 19:26 +0000

    Rafal,
    You ask:
    
    >   Can I use all possible pairs of On and Off measurements to estimate IC?
    >   As in both cases IC calculation gave statistically the same value should I 
    try to remove it or leave it as is (Toward and Away analysis is next step)?
    
    Of course you can use all possible pairs, but this will not alter your result 
    for the IC under normal circumstances.
    So there is no point of doing this. You will never get any difference greater than your sextant accuracy.
    Unless some of your measurements are real blunders which is usually visible without any calculation,
    and such result should be simply discarded.
    
    Remember that when Cel Nav was actually used, no computers and no calculators were available,
    so people tried to minimize the number of calculations.
    
    Alex.
    
    

    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