What are the different Object Types in STK?

Just a note! 

In case you don't see all the object types, open the Insert STK Objects Tool, and select [Edit Preferences]. There you will be able to enable/disable any object types that aren't showing up!

When you select Edit Preferences:

On this page, you can also change the default method for inserting objects if you normally use one type over another.

Hope this helps!

Best,

Drew

In STK, there are various object types that you can add to a scenario. Here is a list of some of the common STK objects and their descriptions:

Physical Objects: These are either Child or Parent Objects. Children must be attached to a parent or to a child who has a parent. 

1. Aircraft: Models the properties and behavior of a vehicle that travels in a great arc route, generally above the surface of the earth.
2. Antenna: Models the properties and behavior of a communications or radar antenna.
3. AreaTarget: Models a region on the surface of the central body.
4. Facility: Represents a fixed location on the surface of the Earth.
5. GroundVehicle: Models the properties and behavior of a vehicle that travels on the surface of the Earth.
6. LaunchVehicle: Models the properties and behavior of a vehicle that launches into space.
7. Line Target: Models a line on the surface of the central body.
8. Missile: Models the properties and behavior of a missile.
9. Planet: Represents a celestial body such as a planet or moon.
10. Radar: Models the properties and behavior of a radar system.
11. Receiver: Models the properties and behavior of a receiver.
12. Satellite: Models the properties and behavior of a satellite.
13. Sensor: Models the properties and behavior of a sensor.
14. Ship: Models the properties and behavior of a ship.
15. Star: Represents a star.
16. Target: Represents a specific point on the surface of the Earth.
17. Transmitter: Models the properties and behavior of a transmitter.

Analysis Objects: These are not necessarily a physical object but contain analysis or data.

18. Access: This is not an object you can add directly, but when computing Access, an Access Object will show inside of the Report and Graph Manager.
19. AdvCAT: Provides a convenient way for you to carry out close approach analyses for multiple satellites and two-line element (TLE) sets.
20. Attitude Coverage: Models a coverage around an object instead of Coverage which is around a central body.
21. Attitude Figure of Merit: Evaluate the quality of Attitude coverage.
22. Chain: Extend the access analysis capabilities, by adding in Multi-Access analysis, from One to One to One, or Many to Many, or One to Many to One and all combinations.
23. Coverage: Enables analysis of the global or regional coverage provided by one or more assets (e.g. vehicles, facilities, sensors) while considering all access constraints.
24. Coverage Figure of Merit: Evaluates the quality of coverage.
25. Constellation: Collection of objects to be used with Chains or Deck Access or Comm System.
26. Comm System: Allows you to model dynamically configured communications links between constellations of transmitters and receivers and can include interference sources.
27. MTO: Multi-Track Object is a Visualization object that can be used to hold multiple ephemeris files. It’s useful if you have many objects with propagated ephemeris and want to Visualize.
28. Satellite Collection: Is similar to a Constellation Object in its usage but primarily to define very large sets of satellites.
29. Volumetric: Analyzes Coverage metric in 3D Space instead of Coverage which performs analysis over surfaces.

These objects can be added to a scenario using the Insert STK Objects tool, which is accessible from the Insert menu or the New Scenario Wizard. Each object type has specific properties and behaviors that can be configured to suit the needs of your analysis.