Is it okay to move the various DEIMOS stages during readout?
Most DEIMOS stages can be moved during CCD readout without compromising the CCD readout noise. However, the dewar focus mechanism and the dewar filter wheel mechanism will inject a few electrons of fixed pattern noise if they are moved while the CCD is reading out. This is due to the fact that the motors for those mechanisms are in extremely close proximity to the DEIMOS CCD electronics boxes and associated cabling.
