| Name | Data Type | Definition | ||
|---|---|---|---|---|
| nilReason | NilReasonEnumeration | |||
| SFC | string | The distance measured from the surface of the Earth (equivalent to AGL - Above Ground Level). | Inherited from CodeVerticalReferenceBaseType | |
| MSL | string | The distance measured from mean sea level (equivalent to altitude). | Inherited from CodeVerticalReferenceBaseType | |
| W84 | string | The distance measured from the WGS84 ellipsoid. | Inherited from CodeVerticalReferenceBaseType | |
| STD | string | The vertical distance is measured with an altimeter set to the standard atmosphere. | Inherited from CodeVerticalReferenceBaseType | |
| OTHER | string | Other. | Inherited from CodeVerticalReferenceBaseType |