Table 2: Best simultaneous fit of the uniform disk diameters. The reduced $\chi ^2$ is defined as the square distance between measure and best fit divided by the difference between number of degrees of freedom and number of measures.
Model $\alpha$ PsA 88 Aqr $\chi ^2$

Previous $2.19\pm0.02$ $3.24\pm0.20$

#1: Linear $\mu^2_{\rm instru}$ $2.25\pm0.06$ $3.26\pm0.05$ 1.1

#2: Spline $\mu^2_{\rm instru}$ $2.23\pm0.07$ $3.26\pm0.06$ 0.51

**Table 2:** Best simultaneous fit of the uniform disk diameters. The reduced $\chi ^2$ is defined as the square distance between measure and best fit divided by the difference between number of degrees of freedom and number of measures.
Model	$\alpha$ PsA	88 Aqr	$\chi ^2$
Previous	$2.19\pm0.02$	$3.24\pm0.20$
#1: Linear $\mu^2_{\rm instru}$	$2.25\pm0.06$	$3.26\pm0.05$	1.1
#2: Spline $\mu^2_{\rm instru}$	$2.23\pm0.07$	$3.26\pm0.06$	0.51

Source LaTeX | All tables | In the text