Imaging

New test images were obtained under 0.3 arcsec seeing with the HR camera to see if there is any affect introduced by the vibrations of the PTR cooler. Taking data with the PTR on and off it has not been possible to see any difference in the average PSF.

The plate scale for the HR-camera was determined (0.078 arcsec/pix) and the optical quality found good all over the FOV. For a seeing of 0.44 arcsec on a combined image made of 9 shifted and added individual images, the stars have ellipticity 0.02 to 0.05 all over the FOV. See

http://www.not.iac.es/instruments/notcam/imagelist.html