| huangshan |
2008-08-12 11:26 |
Summary Ea?.H Rxl
This study is a detailed follow-up to two previous studies concerning stray light in the EO-1 < & iBR
telescope (see EO-1 Stray Light Analysis Reports 1 and 2). Following coating of the EO-1 flight FO$Tn+\ 6
mirrors, the BRDF was measured by SSG, then re-measured by Schmitt Measurement Systems. :_*Q
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The stray spectral radiance from the Stray Radiation Scene described in the LANDSAT 7 ,vPF=wq
specification was recalculated using the Schmitt BRDF measurements and a simple spreadsheet b?? 1Up
calculation. This calculation assumes the Point Source Transmittance (PST) is rotationally I "4B1g
symmetric, and does an integration over the Stray Radiation Scene. z^.0eP8\j
To refine this estimate of stray radiance, ray-trace simulations were done using TracePro to better X Rn=;gK%J
predict the PST. The PST was used to calculate the stray spectral radiance using a C++ computer 2F i*)\{
program written for this purpose. The stray spectral radiance was computed by integrating over wn&2-m*a
the LANDSAT 7 Stray Radiation Scene, weighed by the PST.
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