Calc Objects for the ephemeris of the
object, expressed in LLA elements. Each Calc Object allows a choice
of a central body. The default is Earth.
| Name |
Dimension |
Type |
Description |
| Time |
DateFormat |
Real Number |
Time. |
| Altitude |
DistanceUnit |
Real Number |
The altitude value (i.e., magnitude of the relative
position vector between the object and its detic subpoint). |
| AltitudeRate |
Rate |
Real Number |
The rate of change of altitude. |
| Height_above_terrain |
DistanceUnit |
Real Number |
The height above the terrain |
| Latitude |
AngleUnit |
Real Number |
The detic latitude (i.e., angle between the detic
subpoint's surface normal vector and the XY plane). |
| LatitudeRate |
AngleRateUnit |
Real Number |
The rate of change of the detic latitude. |
| Longitude |
AngleUnit |
Real Number |
The detic longitude (i.e., angle from the X-axis
locating the projection of the detic subpoint's surface normal
vector onto the XY plane.) Longitude increases in the direction
found using the right-hand rule about the Z-axis. |
| LongitudeRate |
AngleRateUnit |
Real Number |
The rate of change of the detic longitude. |