On Mon 2020-01-27T19:33:37+0000 Tony Finch hath writ: > It looks like we're in another long gap, based on the LOD chart and the > UT1-UTC prediction. The current gap is now the second longest...
In the middle of last year the rotation of the earth accelerated enough that LOD went below 86400 for several weeks, and DeltaT decreased significantly. > https://datacenter.iers.org/singlePlot.php?plotname=FinalsDataIAU2000A-UT1-UTC-BULA&id=10 > > https://datacenter.iers.org/singlePlot.php?plotname=FinalsDataIAU2000A-LOD-BULA&id=10 The LOD effects are easier to see using the plots from the Paris bureau of IERS by requesting to remove the predictable tidal variations that basically look like noise on the second plot here. -- Steve Allen <[email protected]> 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 _______________________________________________ LEAPSECS mailing list [email protected] https://pairlist6.pair.net/mailman/listinfo/leapsecs
