A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
From: Jaap vd Heide
Date: 2015 Aug 31, 04:55 -0700
As the trains where were suffering from disturbaces this morning the commute took quite some time more than usual, which offered me a possibility to take some dates in the coming two weeks and see what distances I could compute. I used the data from USNO online (http://aa.usno.navy.mil/data/docs/celnavtable.php) and for some reason I tended to get the values as listed in Stven Wepster's precomputed distances, rather than those on Frank Reed's website. I computed the distances using the all-haversine formula (ZD), on a Casio FX-4500P. Any thoughts? Might it be a rounding issue?