List of observing nights

The command irv with the option -dn and an optional threshold are used to display a list of the nights during which more than n stars have been observed. The default value for n is 5.

This command proposes also a plot of the velocities in function of the time of observation.

Example:

irv -dn 10: displays the list of nights with more than 10 stars observed. To get a list of the observations of a night and make a plot, one has to enter the night number