public static double Get(TidalAccelerationMode mode) => _accs[mode];
/// <summary>
/// Astronomical Almanac table is corrected by adding the expression
/// -0.000091 (ndot + 26)(year-1955)^2 seconds
/// to entries prior to 1955 (AA page K8), where ndot is the secular tidal term in the mean motion of the Moon.
/// Entries after 1955 are referred to atomic time standards and are not affected by errors in Lunar or planetary theory.
/// </summary>
/// <see cref="adjust_for_tidacc"/>
public static double AdjustForTidalAcceleration(double ans, double year, double tidalAcceleration, TidalAccelerationMode mode, bool adjustAfter1955)
{
if (year < 1955.0 || adjustAfter1955)
{
double B = year - 1955.0;
ans += -0.000091 * (tidalAcceleration - Get(mode)) * B * B;
}
return(ans);
}
