Table 1. Random Noise (2-Sigma) in Brewer Radiances, Estimated as the Average of Data Obtained at the GSFC Site in 2005a SZA (deg) VZA Wavelengths (nm) 303 306 310 313 316 320 75 72 3.18 1.66 0.83 0.48 0.33 0.30 75 54 3.32 1.71 0.85 0.49 0.34 0.30 75 36 3.35 1.66 0.82 0.46 0.31 0.30 75 18 3.51 1.64 0.77 0.42 0.30 0.30 75 0 4.04 1.82 0.81 0.43 0.30 0.30 45 72 1.10 0.76 0.57 0.40 0.31 0.30 45 54 1.18 0.84 0.62 0.41 0.35 0.30 45 36 1.25 0.86 0.62 0.41 0.38 0.31 45 18 1.25 0.86 0.62 0.41 0.33 0.30 45 0 1.30 0.87 0.61 0.40 0.31 0.30 aOnly SZA = 45deg and SZA = 75deg are shown here. The 2-sigma noise in Brewer data is in %.