Orbiter Scenario Editor

Changing the simulation date

The Date button on the editor main page opens the date selection page. Here you can change the date of a running simulation, and specifiy how vessels will be propagated from the current to the new date.

The simulation date is displayed in different formats:

If any of the date fields is modified, all other date formats are adjusted automatically. Clicking the Refresh button updates the dialog fields with the current simulation time. Clicking the Apply button sets a new simulation time, and clicking the Now button sets the simulation time to the current computer system time. By using the spin controls in the UT section, the simulation time is updated directly.

Before changing the simulation time, you should specify how vessels are propagated in time to the new date. Different time propagation modes can be selected for orbiting vessels (with orbits that don’t intersect the central body) and for suborbital vessels (with trajectories that intersect the surface). The following options are available for orbital vessels:

For suborbital vessels, in addition to the above one further option is available: You can adjust the time forwards as well as backwards, but remember that moving back in time will not necessarily restore the simulation to a previous state, because the vessel propagation does not take into account events such as engine burns.