IV.3. Information on coordinates

The information on those coordinates, which are currently displayed, should be introduced. To do this select O – C in menu bar and select Data type item in drop-down menu. Then in Data type dialog box specify, first, type of positions (astrometric, geometric or apparent), thereupon specify main plane (equator, ecliptic, or horizon) and equinox (2000, 1950, or True).

Access is allowed only to choices permissible in given situation.

Take notice that after introducing information on coordinates the header of the table must correspond to the type and format of introduced observations. This information on observations is preserved after running and can be used for subsequent runs.