The Interactive Path

As mentioned above, ROMAFOT is interactive or automatic to the extent that the user chooses. It should be clear that the user is not obliged to choose between the automatic or the interactive procedure. In other words the user can shift in the next steps of the reduction sequence from the automatic to the interactive mode or vice versa.

Below, the interactive procedure will be described first, simply because it is easier. Definitely, it is not recommended to follow this procedure for photometry on more than 100 stars. However, a certain degree of interactivity has the advantage that it makes the user aware of what he/she asks the computer to do and he/she shares with it responsibility for the results.

Of course, to start interactive photometry of program stars one should select the stars. This can be done with the command:

• FIND/ROMAFOT
• ANALYSE/ROMAFOT
• FIT/ROMAFOT
• ANALYSE/ROMAFOT
• ANALYSE/ROMAFOT