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A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding
Re: no leap second coming in December
From: Paul Hirose
Date: 2004 Jul 30, 19:23 -0700
From: Paul Hirose
Date: 2004 Jul 30, 19:23 -0700
The USNO's MICA ephemeris program uses actual Delta T values up to 1996.0. Beyond that, it interpolates a lookup table of predictions. For 2004.5, the table says 70 seconds, though the actual value is about 64.7 seconds. Unfortunately, you can't edit the lookup table or override the incorrect Delta T.