Table 20.
The component of uncertainty in radiance temperature due to the uncertainty in spectral radiance as a function of wavelength and temperature. A relative expanded uncertainty (k = 2) of 0.05 % in spectral radiance was taken for the entire range of parameters. The results are stated in mK (k = 2); for parameters that would result in low levels of spectral radiance, no results are given because the measurement precision would be unacceptable
| Temperature (K) |
Wavelength | ||||
|---|---|---|---|---|---|
| 400 nm | 650 nm | 900 nm | 1500 nm | 2000 nm | |
| 500 | 13.0 | 17.4 | |||
| 1000 | 22.6 | 31.3 | 52.1 | 69.5 | |
| 1500 | 31.3 | 50.8 | 70.4 | 117 | 156 |
| 2000 | 55.6 | 90.4 | 125 | 209 | 278 |
| 2500 | 86.9 | 141 | 195 | 326 | 434 |
| 3000 | 125 | 203 | 281 | 469 | 626 |