Hello Peter,

Thanks for the longest exposure time was 30 minutes. Cosmic rays are numerous but not too much of a trouble with multiple exposures on the target. Also my user doesn't require great S/N in far red and blue so need to get peak counts up to 30K, ~8-10K is at the 6563 region of the chip is ok. Other of my users may feel differently depending on their science. This was just a commissioning run to see what we could do with the instrument. Most of our targets were spectroscopic binaries.

Bill