Linear Regression: bias = -1.5 +/- 0.9 micro-seconds at J2000
Linear Regression: rate = -1.7 +/- 0.5 nano-seconds/day
Residuals: w.r.m.s. = 7.5 micro-seconds
Residuals: chi2/ndg = 0.34

Note, that since Calc10 uses a different a priori nutation model and
nutation angles are not estimated in the solution reported here,
differences in the a priori nutation propagate into estimates of UT1
as 0.91*DeltaPsi.