| huangshan |
2008-08-12 11:26 |
Summary )'+8}T]xQ
This study is a detailed follow-up to two previous studies concerning stray light in the EO-1 #NryLE!/
telescope (see EO-1 Stray Light Analysis Reports 1 and 2). Following coating of the EO-1 flight EU+S^SyZi
mirrors, the BRDF was measured by SSG, then re-measured by Schmitt Measurement Systems. (:> ,u*x%
The stray spectral radiance from the Stray Radiation Scene described in the LANDSAT 7 73\JwOn~
specification was recalculated using the Schmitt BRDF measurements and a simple spreadsheet FFEfI4&SfS
calculation. This calculation assumes the Point Source Transmittance (PST) is rotationally Ob<{G"
symmetric, and does an integration over the Stray Radiation Scene. 71t* %
To refine this estimate of stray radiance, ray-trace simulations were done using TracePro to better 4.5|2 \[
predict the PST. The PST was used to calculate the stray spectral radiance using a C++ computer ]%u@TK7
program written for this purpose. The stray spectral radiance was computed by integrating over %Da1(bBh
the LANDSAT 7 Stray Radiation Scene, weighed by the PST.
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