| huangshan |
2008-08-12 11:26 |
Summary
ze#LX4b I
This study is a detailed follow-up to two previous studies concerning stray light in the EO-1 MR+n dB<
telescope (see EO-1 Stray Light Analysis Reports 1 and 2). Following coating of the EO-1 flight iY*Xm, #
mirrors, the BRDF was measured by SSG, then re-measured by Schmitt Measurement Systems. :_H$*Q=1
The stray spectral radiance from the Stray Radiation Scene described in the LANDSAT 7 Z,u:g c+*
specification was recalculated using the Schmitt BRDF measurements and a simple spreadsheet "& C'K
calculation. This calculation assumes the Point Source Transmittance (PST) is rotationally q"]-CGAa
symmetric, and does an integration over the Stray Radiation Scene. : 5"|iRP'
To refine this estimate of stray radiance, ray-trace simulations were done using TracePro to better EW]gG@w]5r
predict the PST. The PST was used to calculate the stray spectral radiance using a C++ computer ^PWZ1.T
program written for this purpose. The stray spectral radiance was computed by integrating over < ^J! *>
the LANDSAT 7 Stray Radiation Scene, weighed by the PST.
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