| huangshan |
2008-08-12 11:26 |
Summary C+uW]]~I)
This study is a detailed follow-up to two previous studies concerning stray light in the EO-1 :^Pks R
telescope (see EO-1 Stray Light Analysis Reports 1 and 2). Following coating of the EO-1 flight v+"4YI N
mirrors, the BRDF was measured by SSG, then re-measured by Schmitt Measurement Systems. I-Z|FKh_C
The stray spectral radiance from the Stray Radiation Scene described in the LANDSAT 7 OtoM
specification was recalculated using the Schmitt BRDF measurements and a simple spreadsheet vjS=Zi nN"
calculation. This calculation assumes the Point Source Transmittance (PST) is rotationally +^lB"OcOX@
symmetric, and does an integration over the Stray Radiation Scene. (bQ3:%nD
To refine this estimate of stray radiance, ray-trace simulations were done using TracePro to better 3r, ~-6
predict the PST. The PST was used to calculate the stray spectral radiance using a C++ computer Vn4wk>b}$2
program written for this purpose. The stray spectral radiance was computed by integrating over Bp_R"DS7A
the LANDSAT 7 Stray Radiation Scene, weighed by the PST.
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