Using Planetary Options

To use Planetary Options, which allows you to select the central body for each scenario:

1. Select Planetary Options from the View menu. The scenario button is replaced with the planetary options button .
2. Click the down arrow on the planetary options button to display a list of central bodies.
3. Select a central body from the list. A new scenario opens, with the selected central body displayed in the 2D and 3D graphics windows. The status bar also indicates the central body selected for the scenario.

Using the planetary option, you can:

• Create a new scenario about a different central body
• Display a different central body in a second graphics window
• Add an object to a particular central body
• Add terrain and imagery to one or more central bodies
• Display satellite ground tracks on one or more central bodies

Create a New Scenario about a Different Central Body

To select a different central body for a new scenario, click the down arrow on the planetary options button .

To keep the same central body that was used when you created the previous scenario, click the mountain on the planetary options button .

Displaying a Different Central Body in a Second Graphics Window

1. Select New 2D/3D Graphics Window or Duplicate 2D/3D Graphics Window from the View menu.
2. Select the newly added graphics window and click to display a list of central bodies.
3. Select a central body from the list to display it in the selected graphics window.

Adding an Object to a Particular Central Body

1. Select New from the Insert menu to display the object list.
2. To add an object to the scenario central body, select the object from the object list and click Insert.

   To add an object to a different central body, select the central body for the object and then select the object. Click Insert.

   The object will display on the scenario central body or the selected central body. The status bar also indicates the central body selected for the object.

   If you selected a central body for the object that is different from the scenario central body, the object central body will become the new default central body in the Central Body for Object field.

Adding Terrain and Imagery to One or More Central Bodies

1. Use the Basic Terrain properties page for a scenario to create a list of available terrain data files that can be used for analysis on one or more central bodies. (For example, in the same scenario, you can put terrain on the Moon to see how a rover on the Moon is obscured by lunar craters and terrain on the Earth to determine if your ground facility is obscured by mountains.)
2. To also display the imagery on a central body, use an Image Converter tool to convert the image to a format that can be used for visualization. The tool also allows you to specify the central body where the terrain will be displayed.
3. Select the 3D Graphics window and click to access the Globe Manager.
4. Use the Globe Manager to add imagery to the central body in the selected graphics window.

Displaying Satellite Ground Tracks on One or More Central Bodies

You can display ground tracks for a particular satellite on one more central bodies using the satellite's 2D Graphics Pass properties page.