NavList:
A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: 2-Body Fix -- take three
From: Peter Hakel
Date: 2009 Nov 11, 11:35 -0800
From: George Huxtable <george@hux.me.uk>
To: navlist@fer3.com
Sent: Wed, November 11, 2009 7:06:12 AM
Subject: [NavList 10562] Re: 2-Body Fix -- take three
Anyway, until I can find a better word, I will continue to use "ambiguous"
in that context of the two-body fix. And in solving that problem, two levels
of ambiguity arise. First, the one that John refers to above, that can only
be resolved by the navigator knowing roughly where the ship is. And a second
level of ambiguity, that arises in deducing a local hour angle from its
cosine, which is less serious in that it can be resolved by logical
procedures only, and needs no navigator's judgment, as I will show later.
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From: Peter Hakel
Date: 2009 Nov 11, 11:35 -0800
I addressed the first (latitude) "ambiguity" in my previous posting and I see no confusion there.
The second (LHA1) ambiguity is what originally prompted me to start this thread. This has now been resolved to my satisfaction with several different methods.
Peter Hakel
The second (LHA1) ambiguity is what originally prompted me to start this thread. This has now been resolved to my satisfaction with several different methods.
Peter Hakel
From: George Huxtable <george@hux.me.uk>
To: navlist@fer3.com
Sent: Wed, November 11, 2009 7:06:12 AM
Subject: [NavList 10562] Re: 2-Body Fix -- take three
Anyway, until I can find a better word, I will continue to use "ambiguous"
in that context of the two-body fix. And in solving that problem, two levels
of ambiguity arise. First, the one that John refers to above, that can only
be resolved by the navigator knowing roughly where the ship is. And a second
level of ambiguity, that arises in deducing a local hour angle from its
cosine, which is less serious in that it can be resolved by logical
procedures only, and needs no navigator's judgment, as I will show later.
--~--~---------~--~----~------------~-------~--~----~
NavList message boards: www.fer3.com/arc
Or post by email to: NavList@fer3.com
To , email NavList+@fer3.com
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