| huangshan |
2008-08-12 11:26 |
Summary mE=%+:o.
This study is a detailed follow-up to two previous studies concerning stray light in the EO-1 lHerEv<ja
telescope (see EO-1 Stray Light Analysis Reports 1 and 2). Following coating of the EO-1 flight O_OgTa
mirrors, the BRDF was measured by SSG, then re-measured by Schmitt Measurement Systems. S3 12#X(%
The stray spectral radiance from the Stray Radiation Scene described in the LANDSAT 7 J N)@bP
specification was recalculated using the Schmitt BRDF measurements and a simple spreadsheet PvF3a `&r
calculation. This calculation assumes the Point Source Transmittance (PST) is rotationally ?*cr|G$r[
symmetric, and does an integration over the Stray Radiation Scene. I!1|);li
To refine this estimate of stray radiance, ray-trace simulations were done using TracePro to better >!sxX = <
predict the PST. The PST was used to calculate the stray spectral radiance using a C++ computer 1[p6v4qO{
program written for this purpose. The stray spectral radiance was computed by integrating over ;}1O\nngR
the LANDSAT 7 Stray Radiation Scene, weighed by the PST.
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