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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re:Moonrise-over-Connecticut
From: Dave Walden
Date: 2021 Nov 5, 11:49 -0700
From: Dave Walden
Date: 2021 Nov 5, 11:49 -0700
Hirose on ICE:
ICE (Interactive Computer Ephemeris) accuracy
From: Paul Hirose
Date: 2014 Mar 31, 21:12 -0700
I wrote: > Regarding ICE, the delta T of this old program has become excessive, > with some impact on Moon coordinates. The effect is small. For instance, at 2014 March 29 12:00 UT1, latitude, longitude, and height all zero, the ICE celestial navigation data for the Moon agree exactly with the USNO online calculator, except that GHA is .1′ too small.
