July 27, 2019
4:49 a.m.
On Fri 2019-07-26T23:16:08-0400 David Patte hath writ:
For my products I use an algorithm (Meeus; Astronomical Algorithms 1998) to 'predict' deltaT into the future. Does anyone have a good source for a more recent algorithm that takes into account IERS values since 1998?
at the moment we seem to be pretty close to "Matsakis parabolic" https://www.ucolick.org/~sla/leapsecs/year2100.html but there are no guarantees -- Steve Allen <sla@ucolick.org> WGS-84 (GPS) UCO/Lick Observatory--ISB 260 Natural Sciences II, Room 165 Lat +36.99855 1156 High Street Voice: +1 831 459 3046 Lng -122.06015 Santa Cruz, CA 95064 https://www.ucolick.org/~sla/ Hgt +250 m