Summary GZN@MK*co
This study is a detailed follow-up to two previous studies concerning stray light in the EO-1 8e lT/Wl
telescope (see EO-1 Stray Light Analysis Reports 1 and 2). Following coating of the EO-1 flight TLL. Ch|#Y
mirrors, the BRDF was measured by SSG, then re-measured by Schmitt Measurement Systems. \?} {wh8
The stray spectral radiance from the Stray Radiation Scene described in the LANDSAT 7 a91Q*X%
specification was recalculated using the Schmitt BRDF measurements and a simple spreadsheet ^j2:fJOU#
calculation. This calculation assumes the Point Source Transmittance (PST) is rotationally _l?5GLl_F$
symmetric, and does an integration over the Stray Radiation Scene. L#e|t0'#
To refine this estimate of stray radiance, ray-trace simulations were done using TracePro to better "*@iXJxv5
predict the PST. The PST was used to calculate the stray spectral radiance using a C++ computer ~~ON! l9n
program written for this purpose. The stray spectral radiance was computed by integrating over 7 #,+Q(2
the LANDSAT 7 Stray Radiation Scene, weighed by the PST.
