secular_spin

ell1fit.spin_stats.secular_spin(table, reference_mjd, degree=1)

Fit F0(t) with a polynomial plus intrinsic scatter.

Returns:

fitScatterFit

With x in seconds from reference_mjd.

summarydict

F0, F1 (and F2 for degree 2…) at reference_mjd as [value, error] in Hz, Hz/s, Hz/s^2; the scatter in Hz; the formal chi-squared and the degrees of freedom.