Summary 0Q7M M6
This study is a detailed follow-up to two previous studies concerning stray light in the EO-1 " CM ucK
telescope (see EO-1 Stray Light Analysis Reports 1 and 2). Following coating of the EO-1 flight !~)90Z!
mirrors, the BRDF was measured by SSG, then re-measured by Schmitt Measurement Systems. ul$,q05nb
The stray spectral radiance from the Stray Radiation Scene described in the LANDSAT 7 d .p'p GL
specification was recalculated using the Schmitt BRDF measurements and a simple spreadsheet ~T% Ui#Gc
calculation. This calculation assumes the Point Source Transmittance (PST) is rotationally LX\)8~dp
symmetric, and does an integration over the Stray Radiation Scene. b:1 L@8s;
To refine this estimate of stray radiance, ray-trace simulations were done using TracePro to better `kFiH*5 %z
predict the PST. The PST was used to calculate the stray spectral radiance using a C++ computer 2 L:$aZ
program written for this purpose. The stray spectral radiance was computed by integrating over cAb>2]M5V
the LANDSAT 7 Stray Radiation Scene, weighed by the PST.
