Summary a-9Y U
This study is a detailed follow-up to two previous studies concerning stray light in the EO-1 3u tJlD
telescope (see EO-1 Stray Light Analysis Reports 1 and 2). Following coating of the EO-1 flight Js'#=
mirrors, the BRDF was measured by SSG, then re-measured by Schmitt Measurement Systems. <q dM
The stray spectral radiance from the Stray Radiation Scene described in the LANDSAT 7 n$})}kj
specification was recalculated using the Schmitt BRDF measurements and a simple spreadsheet [og_0;
calculation. This calculation assumes the Point Source Transmittance (PST) is rotationally YR\pt8(z?
symmetric, and does an integration over the Stray Radiation Scene. !-OPzfHrI
To refine this estimate of stray radiance, ray-trace simulations were done using TracePro to better u6pfc'GG g
predict the PST. The PST was used to calculate the stray spectral radiance using a C++ computer "'8^OZR
program written for this purpose. The stray spectral radiance was computed by integrating over C@$!'^ 61
the LANDSAT 7 Stray Radiation Scene, weighed by the PST.