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: Moon corrections: how computation order affects the result
    From: David Iwancio
    Date: 2020 Sep 2, 05:08 -0700

    Gary: 

    Comparing the NA moon corrections to those in the AA is like comparing the Davies tables to HO 249.  The NA tables are only two pages but require multiple entries.  The AA tables are single-entry but each half-daily, custom-computed table takes up about 1/14 of a page, so we're talking about 52 pages worth of tables.  It just boils down to whether a navigator values time or shelf space more, on a particular vessel, on a particular voyage.

    Processor cycles versus data storage.

       
    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