Creating and Defining OD Objects

Objects to use in setting up and running your OD task can be created from the File menu (for the Scenario object) or the Object menu (for all other objects) or by using corresponding toolbar icons. The objects you create can then be configured in the Object Properties window.

Creating OD Objects

To create a new scenario, select New... from the File menu, or click the Scenario button (shown in the table below). After a scenario has been created, other objects can be added from the Object menu or by clicking toolbar icons. At any given time, one object icon will be displayed in the toolbar. To change the display to another icon, click the downward pointing arrow to the right of the current icon and make your selection. The objects available from the Object menu, as well as the available object icons, depend on the object highlighted in the Browser, since certain objects serve as parents to others. The following table lists the available objects, their associated icons and parent objects.

OD Objects
Icon Object Parent

Scenario (none)

Satellite Scenario

Tracking System Scenario

Filter Scenario

Smoother Scenario

Simulator Scenario

LS (Least Squares) Satellite

IOD (Initial OD) Satellite

Facility Tracking System

Emitter Facility

GNSS Constellation Scenario

GNSS Receiver Satellite, Facility

Transponder Satellite, Facility, GNSSSatellite

Antenna Satellite, GNSSReceiver, GNSSSatellite

TrackingInstrument Satellite

Retroreflector

Retroreflector Satellite, GNSSSatellite

GNSS Satellite GNSSConstellation

VLS (Variable Lag Smoother) Filter

Accelerometer Satellite

Accelerometer Sensor Accelerometer

Configuring OD Objects

To view and/or edit the properties of an OD object, click it in the browser. The object's properties are displayed in hierarchical fashion in the Object Properties window. To change the value for a given property, click the current value in the Value column, and then enter or select the desired new value.

ODTK 6.5