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Paul Hirose:

I was wondering if you would do me a favor in regards to HO-211.

From previous posts I know that you have evaluated the statistical accuracy of HO-211 results using tables tabulated at varying intervals, with and without interpolation, and with and without use of the Sadler method.

I was wondering if you would do the statistical analysis for a 1' of arc table, no interpolation, no Sadler, with statistical results provided for LHA 0°-9°59', 10°-19°59', etc, up to 80°, then every 5° up to 90°?

Regards,

Bob II

Re: HO 211 (Ageton) sight reduction accuracy
From: Paul Hirose
Date: 2016 Jun 28, 22:57 -0700

On 2016-06-22 22:03, Paul Hirose wrote:
> alt   alt   alt   az    az     az
> RMS   >.5'  max   RMS   >.5°   max     table type
>
> 0.69' 4.24% 23.7' 1.71' 0.054% 1.457°  0.2' 84° no interp
> 0.55' 3.74% 21.1' 1.65' 0.05%  1.445°  0.2' 84° interp t<5
> 0.55' 3.74% 23.8' 1.62' 0.047% 1.102°  0.2' 84° interp K<8
>
> 0.62' 2.96% 19.3' 1.41' 0.034% 0.852°  0.2' 54° no interp
> 0.28' 1.95% 12.3' 1.30' 0.027% 1.045°  0.2' 54° interp t<5
> 0.27' 1.52% 12.5' 1.32' 0.027% 1.015°  0.2' 54° interp t<8
> 0.27' 1.65% 12.0' 1.26' 0.021% 0.787°  0.2' 54° interp K<5
> 0.28' 1.42% 12.1' 1.30' 0.023% 0.987°  0.2' 54° interp K<8
>
> 0.42' 11.5% 14.2' 2.53' 0.16%  1.650°  0.5' 54° interp t<5