next up previous contents
Next: Folding prism Up: ALFOSC Previous: Camera   Contents


Continuous problems were encountered when using the BIAS CCD control program in the normal observing set-up with the CCD control card for the multi-window photometry program where there are still some commands that do not work properly.

Test were down to check the gain and linearity with the correct clamp and sample time for the read-out of the CCD with the regular control card. Some of the data still needs to be analyzed, and if the results are OK the settings will be changed permanently to improve the read-out speed from $\sim$90 sec to $\sim$80 sec.

Thomas Augusteijn 2005-10-27