Table 1.

Coefficients for the best-fitting second-order polynomial to all our sensor data. Both the mean value for the sensors and $3\sigma$ values are shown.

Coefficients	a	b	c
Mean curve	$2.2\times {10}^{-4}$	$-1.74\times {10}^{-2}$	$0.12$
$3\sigma$	$\pm 7.5\times {10}^{-5}$	$\pm 9.8\times {10}^{-3}$	$\pm 0.34$