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First holography campaign successfully completed on July 20, 2008


The 12 GHz holography system was successfully installed at the prime focus during the week of July 14-20, 2008. First holography maps of the 32-m diameter inner three rings were obtained immediately following the installation. Using these maps, we adjusted one of the out-of-alignment panels and successfully verified the result using subsequent holography measurements, demonstrating that we can now measure and correct the panel installation using holography. We plan to reset the entire inner three rings of the reflector surface using holography when the actuator installation is completed. Pictures from the holography receiver installation are found here.

(prepared by M. Yun)