Summary hVQ+
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This study is a detailed follow-up to two previous studies concerning stray light in the EO-1 V< 9em7
telescope (see EO-1 Stray Light Analysis Reports 1 and 2). Following coating of the EO-1 flight BGk<NEzH
mirrors, the BRDF was measured by SSG, then re-measured by Schmitt Measurement Systems. &*?!*+!,i
The stray spectral radiance from the Stray Radiation Scene described in the LANDSAT 7 B'[3kJ '
specification was recalculated using the Schmitt BRDF measurements and a simple spreadsheet )H=[NB6J8
calculation. This calculation assumes the Point Source Transmittance (PST) is rotationally B@~eBU,$
symmetric, and does an integration over the Stray Radiation Scene. Y/Gswcz
To refine this estimate of stray radiance, ray-trace simulations were done using TracePro to better CUTEp/+
predict the PST. The PST was used to calculate the stray spectral radiance using a C++ computer rg]A_(3Bb
program written for this purpose. The stray spectral radiance was computed by integrating over 85d7IB{28
the LANDSAT 7 Stray Radiation Scene, weighed by the PST.
