Real-time frame selection

If you want to save the best image every given number of seconds then skip the DOT gui interface and do it from the command line (for every camera you want to use) as follows:

Example: Save the best image every 5 seconds in Halpha, including 5 different line positions

connect to the camera machine (scott for Halpha)

ssh -X scott
idl
.r framesel_ccd
hapos=[6562.90, 6563.15, 6562.65, 6563.40, 6562.40]     
framesel_ccd,5,/select,/show,hapos=hapos