http://cso.caltech.edu/wiki/ 2026-09-20T16:53:50+00:00 http://cso.caltech.edu/wiki/ http://cso.caltech.edu/wiki/lib/tpl/cso/images/favicon.ico text/html 2024-06-06T23:13:36+00:00 http://cso.caltech.edu/wiki/cso/telescope/dsos/dsos?rev=1717715616&do=diff Dish Surface Optimization System The CSO is one of a very few radio telescopes with an active surface correction system. This Dish Surface Optimization System (DSOS) improves the telescope efficiency by altering the primary mirror surface to correct for static imperfections and for changes in gravitational deformation as the telescope moves in zenith angle (elevation). The consequent improvement in the telescope's aperture efficiency is significant at shorter wavelengths, in particular at 350 … text/html 2014-03-18T06:55:44+00:00 http://cso.caltech.edu/wiki/cso/telescope/dsos/userproc?rev=1395125744&do=diff DSOS User Procedure Startup * Open the dome Shutter. This helps the telescope and the chillers (Neslabs) equilibrate at the ambient temperature. * Tip the telescope to ZA = 45°. UIP> za 45 * Connect to the VNC desktop. mycomp> csovnc.pl -l user dsos