Solar System Data Settings

In Visualyse Interplanetary is necessary to have access to one of the JPL ephemeris data files. This file is called something like:

lnxm13000p17000.431

The first time that Visualyse Interplanetary is run it should be configured to point to this file using the menu option File | Solar System Settings. This will open the following dialog:

The UTC to Terrestrial Time (TT) offset allows the dynamic time to be defined relative to UTC.