=== Centre of rotation on SHOC ===
19 Jan 2017: (527,538) - SHOC removed to check mounting (all ok) & countersink ND filter wheel screw below camera mount plate<br /> 18 Jan 2017: (530,527) - secondary retaining ring & radial screws tightened<br /> 7 Nov 2016: (524, 527) - primary & secondary mirror retaining screws & secondary retaining ring tightened<br /> Latest model (model_38s) based on 18 Jan pixel coordinates
=== Start-up recipe ===