Summary NGVl/Qd
This study is a detailed follow-up to two previous studies concerning stray light in the EO-1 (fcJp)D
telescope (see EO-1 Stray Light Analysis Reports 1 and 2). Following coating of the EO-1 flight `PS>"-AY2
mirrors, the BRDF was measured by SSG, then re-measured by Schmitt Measurement Systems. /nB|Fo_&Q
The stray spectral radiance from the Stray Radiation Scene described in the LANDSAT 7 XN}^:j_ 2
specification was recalculated using the Schmitt BRDF measurements and a simple spreadsheet +~f=L- >
calculation. This calculation assumes the Point Source Transmittance (PST) is rotationally Sky X\&
symmetric, and does an integration over the Stray Radiation Scene. G- eSHv
To refine this estimate of stray radiance, ray-trace simulations were done using TracePro to better MZ"|Jn
predict the PST. The PST was used to calculate the stray spectral radiance using a C++ computer ,v_NrX=f?
program written for this purpose. The stray spectral radiance was computed by integrating over Aqo90(jffx
the LANDSAT 7 Stray Radiation Scene, weighed by the PST.
