This app is a simple interface to the TCS for sending science targets to the TCS:
The list is loaded into the app via a text file and displayed in a table. The format for the text file is:
"Vega - Alpha Lyrae" 18 36 56.336 +38 47 01.28 2000 200.94 286.23 0.03
...
The Menu Bar contains several items but the main item is File --> Open Target List:
Open Target List will open a standard dialog box for selecting the input file. The default extension for the input file is *.tls and all other types are greyed out. The input file has to be a standard ASCII text file but it can have any extension (or none at all). Binary file will not be read correctly.
The open file dialog box allows selection of other file extensions via a drop down menu. The user can choose "All Files (.)" from the file type drop down menu and that allows selection of any file in the directory. They files other than *.tls would still be grey but they can be selected and loaded into the app:
types via a check box. Multiple input files can be used for one session and each file is would be loaded into a separate tab.
...