| huangshan |
2008-08-12 11:26 |
Summary 2c+q~8Jv
This study is a detailed follow-up to two previous studies concerning stray light in the EO-1 |y=CmNG ,
telescope (see EO-1 Stray Light Analysis Reports 1 and 2). Following coating of the EO-1 flight ]enqkiS
mirrors, the BRDF was measured by SSG, then re-measured by Schmitt Measurement Systems. SSI&WZ2a
The stray spectral radiance from the Stray Radiation Scene described in the LANDSAT 7 ([$F5
q1TR
specification was recalculated using the Schmitt BRDF measurements and a simple spreadsheet <{ cPa\
calculation. This calculation assumes the Point Source Transmittance (PST) is rotationally cHR }`U$
symmetric, and does an integration over the Stray Radiation Scene. OU{PVF={
To refine this estimate of stray radiance, ray-trace simulations were done using TracePro to better 29Gej Lg |
predict the PST. The PST was used to calculate the stray spectral radiance using a C++ computer &[3!Lk`.0
program written for this purpose. The stray spectral radiance was computed by integrating over Jg%sl& 65
the LANDSAT 7 Stray Radiation Scene, weighed by the PST.
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