| Name | Description | Attributes | 
| CalculateOrientation | Determines whether FreeFlyer will attempt to extract orientation data from the Spice file. If FreeFlyer attempts to extract orientation data and none exists, the Mission Plan will halt with an error. | Type:   Variable Access: Read/Write | 
| DeclaredName | The name of the object as declared. | Type:   String Access: Read-Only | 
| Name | The name displayed for this object in output windows such as views, plots, and reports. | Type:   String Access: Read/Write | 
| NumberOfSpiceFiles | The number of spice files to be stored in the SpiceFiles array. | Type:   Variable Access: Read/Write | 
| ObjectId | The unique identifier for the object. | Type:   Variable Access: Read-Only | 
| ObjectType | The type of the object. | Type:   String Access: Read-Only | 
| Observer | The "parent" object to which the target is referenced. | Type:   String Access: Read/Write | 
| ObserverNAIFID | The NAIF ID code of the observer object to which the target is referenced. | Type:   Variable Access: Read/Write | 
| SpiceFiles | The File Name(s) of the planetary SPICE files. | Type:   StringArray Access: Read/Write | 
| StepSize | Time step in seconds for propagation of the spacecraft using the ephemeris. This property has no effect when producing an ephemeris file. For performance in interplanetary trajectories, it is suggested to use a variable StepSize. | Type:   Variable Access: Read/Write Units:   s | 
| Target | The name of the object to track. | Type:   String Access: Read/Write | 
| TargetNAIFID | The NAIF ID code of the target object. | Type:   Variable Access: Read/Write | 
| Validate | Method to force the configuration of the SpiceEphemeris object to be Validated. | Type:   Variable Access: Read-Only |