| huangshan |
2008-08-12 11:26 |
Summary Q {:=z6&
This study is a detailed follow-up to two previous studies concerning stray light in the EO-1 Klj -dz
telescope (see EO-1 Stray Light Analysis Reports 1 and 2). Following coating of the EO-1 flight z4iTf8
mirrors, the BRDF was measured by SSG, then re-measured by Schmitt Measurement Systems. '5r\o8 RjN
The stray spectral radiance from the Stray Radiation Scene described in the LANDSAT 7 E rrs6
specification was recalculated using the Schmitt BRDF measurements and a simple spreadsheet t[4V1:
calculation. This calculation assumes the Point Source Transmittance (PST) is rotationally hqW),^\>'
symmetric, and does an integration over the Stray Radiation Scene. /_ D_W,#P
To refine this estimate of stray radiance, ray-trace simulations were done using TracePro to better M->BV9
predict the PST. The PST was used to calculate the stray spectral radiance using a C++ computer ) -^(Su(!
program written for this purpose. The stray spectral radiance was computed by integrating over 8svN* `[
the LANDSAT 7 Stray Radiation Scene, weighed by the PST.
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