Function lupnt::GetTtTdbDifference

Function Documentation

double lupnt::GetTtTdbDifference(double t_tdb)

Get the TT-TDB time difference at a geocentric epoch from the DE ephemeris.

Intended to provide the periodic TT-TDB term (DE block 14, “t [s], TT-TDB at geocenter”) for high-precision time conversions, as an alternative to the analytic series used elsewhere in conversions/time_conversions.cc.

Note

Currently unimplemented (throws std::runtime_error).

Parameters:

t_tdb – Epoch [s, TDB since J2000]

Returns:

TT - TDB at the geocenter [s]