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
    Name or NavList Code:
    Email:
       
    Reply
    Re: Compare Methods: Lat/Lon Near Noon
    From: Ed Popko
    Date: 2021 Oct 1, 15:13 -0700

    Antoine,

    Your point (2) is correct. The curve fit does not need MOO values but if we are rerunning our fit to improve our first approximation of LAN, then MOO corrections for the vessel's motion need to be applied to the origional Ho set before rerunning the curve fit on the updated Time/Ho (or Time/Hs) set.

    Depending on the course and Zn's you will get different MOO corrections. 

    But I sense I'm missing something in your note and Tony's

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Get a NavList ID Code

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

    A NavList ID Code guarantees your identity in NavList posts and allows faster posting of messages.

    Retrieve a NavList ID Code

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

    Email Settings

    NavList ID 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