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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: Practice Problems for Tables Methods?
From: Dave Walden
Date: 2021 Jun 2, 12:51 -0700
From: Dave Walden
Date: 2021 Jun 2, 12:51 -0700
At one time, I had written spreadsheets for a number of tabular methods. I thought it would be interesting to compare them, so I generated 10's and 100's of random input sets like those below. Less navigation practice than numerical checking.
Lat | dec | LHA | Ageton Hc | Ageton Zn | HO 208 Hc | HO 208 Zn | Meeus Hc | Meeus Zn | NautALm Hc | NautAlm Zn |
-68 | -79 | 73 | 68.599 | 210.004 | 68.599 | 210.004 | 68.599 | 210.004 | 68.599 | 210.004 |
-27 | -55 | 102 | 15.404 | 215.588 | 15.404 | 215.588 | 15.404 | 215.588 | 15.404 | 215.588 |
22 | -15 | 160 | -69.807 | 286.848 | -69.807 | 286.848 | -69.807 | 286.848 | -69.807 | 286.848 |
-16 | 2 | 65 | 23.352 | 279.401 | 23.352 | 279.401 | 23.352 | 279.401 | 23.352 | 279.401 |
-7 | 46 | 349 | 36.097 | 9.441 | 36.097 | 9.441 | 36.097 | 9.441 | 36.097 | 9.441 |
-35 | -4 | 310 | 34.421 | 67.878 | 34.421 | 67.878 | 34.421 | 67.878 | 34.421 | 67.878 |
-40 | -56 | 61 | 47.780 | 226.704 | 47.780 | 226.704 | 47.780 | 226.704 | 47.780 | 226.704 |
-79 | 86 | 208 | -82.302 | 14.151 | -82.302 | 14.151 | -82.302 | 14.151 | -82.302 | 14.151 |
72 | -86 | 195 | -75.827 | 175.771 | -75.827 | 175.771 | -75.827 | 175.771 | -75.827 | 175.771 |
6 | -12 | 19 | 63.904 | 226.382 | 63.904 | 226.382 | 63.904 | 226.382 | 63.904 | 226.382 |