Table 7.

Measured blackbody spectral radiances (Wcm⁻³sr⁻¹) and random uncertainties (1σ)

	514.5 nm		632.9 nm	647.1 nm
	Si	ECR	Si	Si	ECR
	2.7468	2.7523	48.883	63.482	63.484
	2.7576	2.7570	48.621	63.319	63.395
	2.7656	2.7612	48.761	63.192	63.178
	2.7650	2.7605	48.659	63.396	63.379
	2.7653	2.7616	48.696	63.477	63.231
Mean	2.7601	2.7586	48.724	63.373	63.333
Std dev of mean	0.0036	0.0018	0.046	0.054	0.056
	(0.13%)	(0.07%)	(0.09%)	(0.09%)	(0.09%)
Difference	0.0015			0.040
	(0.05%)			(0.06%)