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Re: Precision, Averaging
From: Frank Reed CT
Date: 2004 Oct 9, 18:05 EDT
From: Frank Reed CT
Date: 2004 Oct 9, 18:05 EDT
Alex E wrote:
"b) the more sophisticated averaging, by planning the observations
in such a way that most of the errors tend to cancel each other.
Like averaging the lunar distances East and West of the Moon."
This was recommended in various works on nautical astronomy, but at sea, it wasn't worth much. It doubles the work load of a procedure that already took about half an hour (ten minutes for sights, twenty for reduction).
Frank R
[ ] Mystic, Connecticut
[X] Chicago, Illinois
"b) the more sophisticated averaging, by planning the observations
in such a way that most of the errors tend to cancel each other.
Like averaging the lunar distances East and West of the Moon."
This was recommended in various works on nautical astronomy, but at sea, it wasn't worth much. It doubles the work load of a procedure that already took about half an hour (ten minutes for sights, twenty for reduction).
Frank R
[ ] Mystic, Connecticut
[X] Chicago, Illinois