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Don Cross 36643fc47a Fixed #2 - use finer-grained delta-t values without discontinuities. 
Using historic, recent, and predicted values of TT-UT instead of
UTC leap seconds.  With linear interpolation, there are no longer
discrete jumps in the calculated TT values. Hopefully, this will
make event solvers (rise, set, etc) more well-behaved.
2019-04-14 16:42:50 -04:00

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Delta-T values

Historical and predicted values of TT-UT1 from the United States Naval Observatory.

http://maia.usno.navy.mil/ser7/

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