Summary ZuZCIqN
This study is a detailed follow-up to two previous studies concerning stray light in the EO-1 Z?d][zGw
telescope (see EO-1 Stray Light Analysis Reports 1 and 2). Following coating of the EO-1 flight 8)MWC:
mirrors, the BRDF was measured by SSG, then re-measured by Schmitt Measurement Systems. 6Eus_aP
The stray spectral radiance from the Stray Radiation Scene described in the LANDSAT 7 mN>(n+ly
specification was recalculated using the Schmitt BRDF measurements and a simple spreadsheet NB5lxaL
calculation. This calculation assumes the Point Source Transmittance (PST) is rotationally F@HJ3O9
symmetric, and does an integration over the Stray Radiation Scene. :Gzp
(@<@e
To refine this estimate of stray radiance, ray-trace simulations were done using TracePro to better GvvKM=1
predict the PST. The PST was used to calculate the stray spectral radiance using a C++ computer a_]l?t
program written for this purpose. The stray spectral radiance was computed by integrating over F(ZczwvR
the LANDSAT 7 Stray Radiation Scene, weighed by the PST.