`C_1L = 1.191042869(53) *10^-16 W m^2 sr^-1 `

1.19104287E-16

spectral radiance constant

Notes

Value  1.191 042 869 x 10^-16 W m² sr^-1

Standard uncertainty  0.000 000 053 x 10^-16 W m² sr^-1

  Relative standard uncertainty   4.4 x 10^-8

Concise form  1.191 042 869(53) x 10^-16 W m² sr^-1